[COMMON] Add limits to timescale db

- Added resources limit similar to postgres in the timescaledb
- Using common.podSecurityContext
- removed init-container and it is handled by kubernetes
  if fsGroup is provided

Issue-ID: CPS-667
Signed-off-by: Renu Kumari <renu.kumari@bell.ca>
Change-Id: I944cc93526d0d89f32840450121c1ff608fdd4c5
2 files changed