JVMTI GetLocalVariableTable function support

Adds support for the JVMTI GetLocalVariableTable function. Also
enables the can_access_local_variables capability. Other functions
behind this capability will be added in next CL.

Tests follow in later CL.

Test: ./test.py --host -j50
Bug: 34414073
Bug: 36892980
Change-Id: I5a6746d3ae58f1c2b3c79c578f2622ead71d8990