Restructure project, remove AI as that's it's own repo now.

.gitignore

@@ -2,22 +2,23 @@
 #
 # Get latest from https://github.com/github/gitignore/blob/master/Unity.gitignore
 #
-/[Ll]ibrary/
-/[Tt]emp/
-/[Oo]bj/
-/[Bb]uild/
-/[Bb]uilds/
-/[Ll]ogs/
-/[Mm]emoryCaptures/
+/src/[Ll]ibrary/
+/src/[Tt]emp/
+/src/[Oo]bj/
+/src/[Bb]uild/
+/src/[Bb]uilds/
+/src/[Ll]ogs/
+/src/[Mm]emoryCaptures/
+/src/[Uu]ser[Ss]ettings/
 
 # Asset meta data should only be ignored when the corresponding asset is also ignored
-!/[Aa]ssets/**/*.meta
+!/src/[Aa]ssets/**/*.meta
 
 # Uncomment this line if you wish to ignore the asset store tools plugin
 # /[Aa]ssets/AssetStoreTools*
 
 # Autogenerated Jetbrains Rider plugin
-[Aa]ssets/Plugins/Editor/JetBrains*
+/src/[Aa]ssets/Plugins/Editor/JetBrains*
 
 # Visual Studio cache directory
 .vs/
@@ -58,4 +59,3 @@ sysinfo.txt
 # Crashlytics generated file
 crashlytics-build.properties
 
-/*.vsconfig