Support FileAbstractSelectionDialog

Answer file names for the fileList.

Pretend to be under the FileDirectory root because otherwise
the dialog will loop endlessly until it finds this root. This is 
because FSPath>>parent answers self if the path is the root
already. And the root paths are not the same as the
FileDirectory root.

Author: j4yk

src/FS-FileDirectory-Adapters.package/FSFileDirectoryAdapter.class/instance/containingDirectory.st

@@ -1,3 +1,4 @@
 enumeration
 containingDirectory
+	reference isRoot ifTrue: [^ FileDirectory root].
 	^ FSFileDirectoryAdapter on: reference parent

src/FS-FileDirectory-Adapters.package/FSFileDirectoryAdapter.class/methodProperties.json

@@ -6,7 +6,7 @@
 		"/" : "jr 4/23/2017 23:06",
 		"=" : "jr 9/6/2020 12:53",
 		"asFSReference" : "jr 4/6/2018 21:44",
-		"containingDirectory" : "jr 9/6/2020 13:02",
+		"containingDirectory" : "jr 5/14/2021 11:26",
 		"createDirectory:" : "jr 6/29/2017 16:06",
 		"directoryNamed:" : "jr 4/23/2017 23:10",
 		"directoryNames" : "jr 4/23/2017 23:09",

src/FS-FileDirectory-Adapters.package/FSFileDirectoryEntryAdapter.class/instance/name.st

@@ -0,0 +1,3 @@
+accessing
+name
+	^ reference basename

src/FS-FileDirectory-Adapters.package/FSFileDirectoryEntryAdapter.class/methodProperties.json

@@ -6,4 +6,5 @@
 		"entry:" : "jr 4/23/2017 23:24",
 		"fileSize" : "jr 4/23/2017 23:28",
 		"isDirectory" : "jr 4/23/2017 23:26",
-		"modificationTime" : "jr 4/23/2017 23:27" } }
+		"modificationTime" : "jr 4/23/2017 23:27",
+		"name" : "jr 5/14/2021 11:41" } }