chore(*): organise rules into folders by type

src/rules/line/noTrailingSpaces.ts

@@ -0,0 +1,30 @@
+import { LineLintRule } from '../../types/LintRule'
+import { LintRuleType } from '../../types/LintRuleType'
+import { Severity } from '../../types/Severity'
+
+const name = 'noTrailingSpaces'
+const description = 'Disallow trailing spaces on lines.'
+const message = 'Line contains trailing spaces'
+const test = (value: string, lineNumber: number) =>
+  value.trimEnd() === value
+    ? []
+    : [
+        {
+          message,
+          lineNumber,
+          startColumnNumber: value.trimEnd().length + 1,
+          endColumnNumber: value.length,
+          severity: Severity.Warning
+        }
+      ]
+
+/**
+ * Lint rule that checks for the presence of trailing space(s) in a given line of text.
+ */
+export const noTrailingSpaces: LineLintRule = {
+  type: LintRuleType.Line,
+  name,
+  description,
+  message,
+  test
+}