Relocate projects to spring-boot-project

Move projects to better reflect the way that Spring Boot is released.

The following projects are under `spring-boot-project`:

  - `spring-boot`
  - `spring-boot-autoconfigure`
  - `spring-boot-tools`
  - `spring-boot-starters`
  - `spring-boot-actuator`
  - `spring-boot-actuator-autoconfigure`
  - `spring-boot-test`
  - `spring-boot-test-autoconfigure`
  - `spring-boot-devtools`
  - `spring-boot-cli`
  - `spring-boot-docs`

See gh-9316

spring-boot-project/spring-boot-cli/src/main/content/shell-completion/bash/spring

@@ -0,0 +1,22 @@
+# bash completion for spring
+# Installation: source this file locally in a terminal or from
+# ~/.bashrc or put it in /etc/bash_completions.d (debian)
+
+_spring()
+{
+	local cur prev help helps words cword command commands i
+
+	_get_comp_words_by_ref cur prev words cword
+
+	COMPREPLY=()
+
+	while read -r line; do
+		reply=`echo "$line" | awk '{print $1;}'`
+		COMPREPLY+=("$reply")
+	done < <(spring hint ${cword} ${words[*]})
+
+	if [ $cword -ne 1 ]; then
+		_filedir
+	fi
+
+} && complete -F _spring spring

spring-boot-project/spring-boot-cli/src/main/content/shell-completion/zsh/_spring

@@ -0,0 +1,29 @@
+#compdef spring 'spring'
+#autoload
+
+_spring() {
+
+	local cword
+	let cword=CURRENT-1
+
+	local hints
+	hints=()
+
+	local reply
+	while read -r line; do
+		reply=`echo "$line" | awk '{printf $1 ":"; for (i=2; i<NF; i++) printf $i " "; print $NF}'`
+		hints+=("$reply")
+	done < <(spring hint ${cword} ${words[*]})
+
+	if ((cword == 1)) {
+		_describe -t commands 'commands' hints
+		return 0
+	}
+
+	_describe -t options 'options' hints
+	_files
+
+	return 0
+}
+
+_spring "$@"