Add Kind column to stack maps.

Add 'Kind' column to stack maps which marks special stack map types,
and use it at run-time to add extra sanity checks.

It will also allow us to binary search the stack maps.

The column increases .oat file by 0.2%.

Test: test-art-host-gtest-stack_map_test
Change-Id: I2a9143afa0e32bb06174604ca81a64c41fed232f