tweak(format): Improve matching for Black & White colour grade (#34)

- Improve b&w matching to include various spellings / delimiters
- Enforce year look ahead to make sure black & white is not included in title
- Negate any colorized releases that were originally black and white

regex_patterns/Colour.yml

@@ -0,0 +1,72 @@
+name: Colour
+pattern: \bcolou?r(i[sz]ed?|ed)?\b
+description: '- Matches `colour`, `coloured`, `colourize`, `colourized`.
+
+  - Handles both American ("color") and British ("colour") spellings.'
+tags:
+- Colour Grade
+- Enhancement
+tests:
+- expected: true
+  id: 1
+  input: colour
+  lastRun: '2025-02-13T13:29:13.301346'
+  matchSpan:
+    end: 6
+    start: 0
+  matchedContent: colour
+  matchedGroups:
+  - null
+  passes: true
+- expected: true
+  id: 3
+  input: coloured
+  lastRun: '2025-02-13T13:29:13.301346'
+  matchSpan:
+    end: 8
+    start: 0
+  matchedContent: coloured
+  matchedGroups:
+  - ed
+  passes: true
+- expected: true
+  id: 4
+  input: colourize
+  lastRun: '2025-02-13T13:29:13.301346'
+  matchSpan:
+    end: 9
+    start: 0
+  matchedContent: colourize
+  matchedGroups:
+  - ize
+  passes: true
+- expected: true
+  id: 7
+  input: colourized
+  lastRun: '2025-02-13T13:29:13.301346'
+  matchSpan:
+    end: 10
+    start: 0
+  matchedContent: colourized
+  matchedGroups:
+  - ized
+  passes: true
+- expected: true
+  id: 8
+  input: colored
+  lastRun: '2025-02-13T13:29:13.301346'
+  matchSpan:
+    end: 7
+    start: 0
+  matchedContent: colored
+  matchedGroups:
+  - ed
+  passes: true
+- expected: false
+  id: 9
+  input: discolor
+  lastRun: '2025-02-13T13:29:13.301346'
+  matchSpan: null
+  matchedContent: null
+  matchedGroups: []
+  passes: true