Add PathSearch component

- New PatchSearch component
- Allow user to define base directory for search
- Show (using single select list) search results
- Allow user to define search string
- Implement algorithms(start with exact-match and fuzzy-match) from fuzzy search tool (fzf)
- Sample "component path search" and change "component path" to "component path input"
- Fixes #556

spring-shell-core/spring-shell-core.gradle

@@ -12,6 +12,7 @@ dependencies {
 	api('org.springframework:spring-messaging')
 	api('org.jline:jline')
 	api('org.antlr:ST4')
+	api('commons-io:commons-io')
 	compileOnly 'com.google.code.findbugs:jsr305'
 	testImplementation 'org.springframework.boot:spring-boot-starter-test'
 	testImplementation 'org.awaitility:awaitility'