Extend PowerHalWrapper to support HIDL 1.2 and 1.3

 * Added support for 1.2 and 1.3 HIDL calls to the PowerHalWrapper
 * Expanded the wrapper and loader tests to cover these new versions
 * Lightly tweaked the existing tests to make them more comprehensive

Bug: b/244631171
Test: atest libpowermanager_test

Change-Id: I5890106817b7cf243cdd21b3acf22ff7fcd8174e