Make operator chart respect shared secrets flags

- Introduces new flag `global.sharedSecrets property`
- Operator won't create shared secrets when `global.sharedSecrets.enabled: false`
- Deprecates `shared-secrets.enabled`, etc.
4 jobs for issues/32 in 1 minute and 55 seconds (queued for 1 second)
latest
Status Job ID Name Coverage
  Specs
failed #116904981
review_specs

00:01:13

 
  Qa
skipped #116904982
allowed to fail
qa
skipped #116904983
review_helm_test
 
  Package
passed #116904984
lint_package

00:00:42

 
Name Stage Failure
failed
review_specs Specs
Running on runner-ed2dce3a-project-9131682-concurrent-0 via runner-ed2dce3a-srm-1541498304-b218483f...
Cloning repository...
Cloning into '/builds/jhenning/gitlab'...
Checking out 99b260d9 as issues/32...
Skipping Git submodules setup
$ # Auto DevOps variables and functions # collapsed multi-line command
$ source variables
/bin/bash: line 297: variables: No such file or directory
ERROR: Job failed: exit code 1