Split common into composite subprojects with project references

- common/tsconfig.json is a solution root referencing layer tsconfigs
- Each layer has composite tsconfig with correct references and outDir
- Break buffer/services cycle via buffer-local service interfaces
- Move cell types, keyboard/unicode types, TaskQueue, and TerminalOptions
- Exclude *.test.ts from composite builds; fix parser IDisposable imports

Co-authored-by: Daniel Imms <Tyriar@users.noreply.github.com>

src/common/parser/EscapeSequenceParser.test.ts

@@ -10,7 +10,7 @@ import { StringToUtf32, stringFromCodePoint, utf32ToString } from 'common/encodi
 import { ParserState } from 'common/parser/Constants';
 import { Params } from 'common/parser/Params';
 import { OscHandler } from 'common/parser/OscParser';
-import { IDisposable } from 'common/services/Types';
+import type { IDisposable } from 'common/base/Lifecycle';
 import { DcsHandler } from 'common/parser/DcsParser';
 import { ApcHandler } from 'common/parser/ApcParser';