Isolating all vault-manager helm chart and related content into a new
package. Per STX.APP.12, STX.APP.13, vault-manager should be allowed to
be disabled so that another solution can be used to manage vault. The
file structure is also changed, so that vault-helm is under
helm-charts/upstream, and vault-manager-helm is under helm-chart/custom
Test Plan:
PASS build all vault-related packages
PASS Create new vault application tarball
PASS test existing vault features:
PASS AIO-SX vault sanity
PASS Vault rekey feature test
PASS vault application update and watch PVC conversion
Story: 2010929
Task: 49600
Change-Id: I87cce3466ad905d00da715ce582baa28371135c1
Signed-off-by: Tae Park <tae.park@windriver.com>