Migrate docs shell samples to asciinema

- Update antora settings
- Move cast files and remove old ones
- Switch shell svg's to asciinema
- Fixes #884

spring-shell-docs/modules/ROOT/pages/components/ui/confirmation.adoc

@@ -1,7 +1,7 @@
 [[using-shell-components-ui-confirmation]]
 = Confirmation
 
-ifndef::snippets[:snippets: ../../test/java/org/springframework/shell/docs]
+ifndef::snippets[:snippets: ../../../../../src/test/java/org/springframework/shell/docs]
 
 The confirmation component asks a user for a simple confirmation. It is essentially a
 yes-or-no question.
@@ -11,9 +11,12 @@ yes-or-no question.
 include::{snippets}/UiComponentSnippets.java[tag=snippet5]
 ----
 
-The following image shows the typical output from a confirmation component:
+The following screencast shows the typical output from a confirmation component:
 
-image::component-confirmation-1.svg[text input]
+[asciinema,rows=8]
+----
+include::example$component-confirmation-1.cast[]
+----
 
 The context object is `ConfirmationInputContext`. The following table describes its context variables:
 

spring-shell-docs/modules/ROOT/pages/components/ui/multiselect.adoc

@@ -1,7 +1,7 @@
 [[using-shell-components-ui-multiselect]]
 = Multi Select
 
-ifndef::snippets[:snippets: ../../test/java/org/springframework/shell/docs]
+ifndef::snippets[:snippets: ../../../../../src/test/java/org/springframework/shell/docs]
 
 The multi select component asks a user to select multiple items from a list.
 The following listing shows an example:
@@ -11,9 +11,12 @@ The following listing shows an example:
 include::{snippets}/UiComponentSnippets.java[tag=snippet7]
 ----
 
-The following image shows a typical multi-select component:
+The following screencast shows a typical multi-select component:
 
-image::component-multi-select-1.svg[text input]
+[asciinema,rows=9]
+----
+include::example$component-multi-select-1.cast[]
+----
 
 The context object is `MultiItemSelectorContext`. The following table describes its context variables:
 

spring-shell-docs/modules/ROOT/pages/components/ui/pathinput.adoc

@@ -1,7 +1,7 @@
 [[using-shell-components-ui-pathinput]]
 = Path Input
 
-ifndef::snippets[:snippets: ../../test/java/org/springframework/shell/docs]
+ifndef::snippets[:snippets: ../../../../../src/test/java/org/springframework/shell/docs]
 
 The path input component asks a user for a `Path` and gives additional information about a path itself.
 
@@ -10,9 +10,12 @@ The path input component asks a user for a `Path` and gives additional informati
 include::{snippets}/UiComponentSnippets.java[tag=snippet4]
 ----
 
-The following image shows typical output from a path input component:
+The following screencast shows typical output from a path input component:
 
-image::component-path-input-1.svg[text input]
+[asciinema,rows=6]
+----
+include::example$component-path-input-1.cast[]
+----
 
 The context object is `PathInputContext`. The following table describes its context variables:
 

spring-shell-docs/modules/ROOT/pages/components/ui/pathsearch.adoc

@@ -15,9 +15,12 @@ include::{snippets}/UiComponentSnippets.java[tag=snippet9]
 NOTE: Logic for search is passed as is into algorithms documented
 in xref:appendices/techintro/searchalgorithm.adoc[Search Algorithms].
 
-The following image shows typical output from a path search component:
+The following screencast shows typical output from a path search component:
 
-image::component-path-search-1.svg[text input]
+[asciinema,rows=10]
+----
+include::example$component-path-search-1.cast[]
+----
 
 The context object is `PathSearchContext`. The following table describes its context variables:
 

spring-shell-docs/modules/ROOT/pages/components/ui/singleselect.adoc

@@ -1,7 +1,7 @@
 [[using-shell-components-ui-singleselect]]
 = Single Select
 
-ifndef::snippets[:snippets: ../../test/java/org/springframework/shell/docs]
+ifndef::snippets[:snippets: ../../../../../src/test/java/org/springframework/shell/docs]
 
 A single select component asks a user to choose one item from a list. It is similar to a simple
 dropbox implementation. The following listing shows an example:
@@ -11,9 +11,12 @@ dropbox implementation. The following listing shows an example:
 include::{snippets}/UiComponentSnippets.java[tag=snippet6]
 ----
 
-The following image shows typical output for a single select component:
+The following screencast shows typical output for a single select component:
 
-image::component-single-select-1.svg[text input]
+[asciinema,rows=8]
+----
+include::example$component-single-select-1.cast[]
+----
 
 The context object is `SingleItemSelectorContext`. The following table describes its context variables:
 

spring-shell-docs/modules/ROOT/pages/components/ui/stringinput.adoc

@@ -1,7 +1,7 @@
 [[using-shell-components-ui-stringinput]]
 = String Input
 
-ifndef::snippets[:snippets: ../../test/java/org/springframework/shell/docs]
+ifndef::snippets[:snippets: ../../../../../src/test/java/org/springframework/shell/docs]
 
 The string input component asks a user for simple text input, optionally masking values
 if the content contains something sensitive. The following listing shows an example:
@@ -11,9 +11,12 @@ if the content contains something sensitive. The following listing shows an exam
 include::{snippets}/UiComponentSnippets.java[tag=snippet3]
 ----
 
-The following image shows typical output from a string input component:
+The following screencast shows typical output from a string input component:
 
-image::component-text-input-1.svg[text input]
+[asciinema,rows=6]
+----
+include::example$component-text-input-1.cast[]
+----
 
 The context object is `StringInputContext`. The following table lists its context variables: