Add support for conditional types, offset access types and `key-of`, `value-of`, `int-mask`, `int-mask-of` #241

Job	Run time
Code Coverage / Code Coverage	15s
Coding Standards / Coding Standards (8.0)	26s
Static analysis / Static Code Analysis (8.0)	18s
Unit test / Supported Versions Matrix	6s
Dependency analysis / Dependency Analysis (8.0)	22s
Lint root / Lint yaml & Composer (8.0)	10s
Unit test / Tests (7.3, locked)	16s
Unit test / Tests (7.3, lowest)	24s
Unit test / Tests (7.4, highest)	25s
Unit test / Tests (7.4, lowest)	25s
Unit test / Tests (7.4, locked)	14s
Unit test / Tests (8.0, locked)	13s
Unit test / Tests (8.0, highest)	29s
Unit test / Tests (7.3, highest)	33s
Unit test / Tests (8.2, lowest)	23s
Unit test / Tests (8.1, lowest)	24s
Unit test / Tests (8.2, locked)	16s
Unit test / Tests (8.1, highest)	22s
Unit test / Tests (8.2, highest)	28s
Unit test / Tests (8.3, lowest)	40s
Unit test / Tests (8.0, lowest)	24s
Unit test / Tests (8.5, locked)	29s
Unit test / Tests (8.4, highest)	31s
Unit test / Tests (8.3, highest)	35s
Unit test / Tests (8.1, locked)	12s
Unit test / Tests (8.3, locked)	19s
Unit test / Tests (8.5, highest)	40s
Unit test / Tests (8.4, locked)	16s
Unit test / Tests (8.5, lowest)	49s
Unit test / Tests (8.4, lowest)	29s
	11m 53s

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