Apply minor edits to PackageTagsList

Rename several methods to prepare the class to be a public API.
- `includes(String)` becomes `containsPackage(String)`
- `includesTag(String)` becomes `containsTag(String)`
- `containsAll(String)` becomes `containsPackageWithAllTags(String)`
- `contains(PackageTagsList)` becomes `containAll(PackageTagsList)`
- `add(PackageTagsList)` becomes `addAll(PackageTagsList)`
- `add(Map)` becomes `addAll(Map)`
- `remove(PackageTagsList)` becomes `removeAll(PackageTagsList)`
- `remove(Map)` becomes `removeAll(Map)`

removes @deprecate from `getPackages()`.
Mark `Builder.clear()` as hidden.

Test: Covered by unit tests.
Test: atest CtsLocationNoneTestCases:LocationDisabledAppOpsTest
Test: atest CtsSecurityTestCases:LocationDisabledAppOpsTest
Bug: 362287534
Flag: EXEMPT refactor. TestApi changes only.
Relnote: N/A
Change-Id: I82bce1df4d1e8b5fdfb9bb284c54ea8b9ac91840