Minimal formatting fixes in VDM Demo.

Only fixing indentation and imports.
Not using Android style - slightly modified Google Java style
with 4 spaces for indentation instead of 2 passes repohooks.

Still unfixed: field names and javadocs.

Some files have illegible diff but you have to trust me this
is a no-op.

Test: n/a
Bug: 314429441
Change-Id: I3466008a2f0b7d7ee4c1993ce694f7371de04eef
36 files changed