Replace accumulate-palette-entries with new changecount filter

Much more direct and efficient

editions/test/tiddlers/tests/data/palettes/Accumulate.tid

@@ -1,40 +0,0 @@
-
-title: Operators/Palettes/Accumulate
-description: Recursively accumulate palette definitions
-type: text/vnd.tiddlywiki-multiple
-tags: [[$:/tags/wiki-test-spec]]
-
-title: Output
-
-\import [subfilter{$:/core/config/GlobalImportFilter}]
-\parsermode inline
-<$text text={{{ [accumulate-palette-entries[MyPalette]] }}}/>
-+
-title: $:/palette
-
-MyPalette
-+
-title: MyPalette
-name: My Palette
-description: My custom palette
-tags: $:/tags/Palette
-type: application/x-tiddler-dictionary
-palette-import: MyOtherPalette
-color-scheme: light
-
-page-background: <<colour custom>>
-custom: #f4e4d4
-+
-title: MyOtherPalette
-name: My Other Palette
-description: My other custom palette
-tags: $:/tags/Palette
-type: application/x-tiddler-dictionary
-color-scheme: light
-
-page-background: #d4e4f4
-background: red
-+
-title: ExpectedResult
-
-["page-background:#d4e4f4","background:red","page-background:&lt;&lt;colour custom&gt;&gt;","custom:#f4e4d4"]{"title":"MyPalette","name":"My Palette","description":"My custom palette","tags":"$:/tags/Palette","type":"application/x-tiddler-dictionary","palette-import":"MyOtherPalette","color-scheme":"light","text":"page-background: &lt;&lt;colour custom&gt;&gt;\ncustom: #f4e4d4"}