Add initial test image creation script [ci skip]

docs/TestImage.md

@@ -0,0 +1,67 @@
+# Test Image Creation
+
+
+```smalltalk
+| manifest load |
+manifest := #(
+    ('http://source.squeak.org/FFI'          1 ('FFI-Pools' 'FFI-Kernel'))
+    ('http://source.squeak.org/VMMaker'      6 ('Balloon-Engine-Pools' 'VMMaker.oscog'))
+    ('http://www.squeaksource.com/OSProcess' 4 ('OSProcess'))
+).
+
+load := (manifest collect: [:tuple |
+    [:path :order :packages| | repository |
+    repository := MCHttpRepository
+        location: path
+        user: 'squeak'
+        password: 'squeak'.
+    MCRepositoryGroup default addRepository: repository.
+    {repository. order. packages}] valueWithArguments: tuple]).
+
+    load := (manifest collect:
+        [:tuple|
+        [:path :order :packages| | repository |
+        repository := MCHttpRepository
+                        location: path
+                        user: 'squeak'
+                        password: 'squeak'.
+        MCRepositoryGroup default addRepository: repository.
+        {repository. order. packages}] valueWithArguments: tuple])
+    sort: [:a :b| a second <= b second].
+load do: [:tuple |
+    [:repository :order :packages|
+    packages do:
+        [:package| | latestVersion |
+        "We need to filter-out branches of unbranched packages."
+        latestVersion := (repository versionNamesForPackageNamed: package)
+            detect: [:versionName| (versionName at: package size + 1) = $-].
+        [| version |
+        version := (
+            (MCCacheRepository default includesVersionNamed: latestVersion)
+                ifTrue: [MCCacheRepository default]
+                ifFalse: [repository]) versionNamed: latestVersion.
+         version load.
+         version workingCopy repositoryGroup addRepository: repository]
+            on: Warning
+            do: [:ex| ex resume]]]
+        valueWithArguments: tuple].
+
+"Patch VMMaker classes for GraalSqueak"
+Utilities authorInitials: 'GraalSqueak'.
+(Smalltalk at: #InterpreterProxy) compile: 'stringOf: oop
+    ^ self cStringOrNullFor: oop'.
+(Smalltalk at: #BitBltSimulation) compile: 'assert: aBlock "disable #assert:"'.
+(Smalltalk at: #ThisOSProcess) class compile: 'startUp: resuming "disable #startUp:"'.
+
+"Disable performance killers"
+World setAsBackground: Color black lighter.
+Morph useSoftDropShadow: false.
+
+SystemWindow gradientWindow: false.
+DialogWindow gradientDialog: false.
+MenuMorph gradientMenu: false.
+PluggableButtonMorph gradientButton: false.
+ScrollBar gradientScrollBar: false.
+
+Morph indicateKeyboardFocus: false.
+```