switch all controllers to use crd as source of truth

[OliverMKing]

Description

Switches the crd to be the source of truth for all controllers.

TODO next pr: push event to crd if fail to reconcile

Type of change

Please delete options that are not relevant.

• [ ] Bug fix (non-breaking change which fixes an issue)
• [x] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)
• [ ] This change requires a documentation update

How Has This Been Tested?

Tested locally and unit tested

Checklist:

• [x] My code follows the style guidelines of this project
• [x] I have performed a self-review of my code
• [x] I have commented my code, particularly in hard-to-understand areas
• [x] I have made corresponding changes to the documentation
• [x] My changes generate no new warnings
• [x] I have added tests that prove my fix is effective or that my feature works
• [x] New and existing unit tests pass locally with my changes
• [x] Any dependent changes have been merged and published in downstream modules

[coveralls]

Pull Request Test Coverage Report for Build 6801242937

• 139 of 210 (66.19%) changed or added relevant lines in 9 files are covered.
• 3 unchanged lines in 2 files lost coverage.
• Overall coverage decreased (-0.04%) to 77.007%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
pkg/controller/keyvault/placeholder_pod.go	2	4	50.0%
pkg/controller/ingress/concurrency_watchdog.go	32	35	91.43%
pkg/controller/nginxingress/nginx_ingress_controller.go	23	28	82.14%
pkg/controller/nginxingress/index.go	43	60	71.67%
pkg/controller/controller.go	0	44	0.0%
<!--	Total:	139	210	66.19%	-->

Files with Coverage Reduction	New Missed Lines	%
pkg/controller/nginxingress/nginx_ingress_controller.go	1	68.59%
pkg/controller/controller.go	2	17.22%
<!--	Total:	3		-->

Totals
Change from base Build 6758002808:	-0.04%
Covered Lines:	2763
Relevant Lines:	3588

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💛 - Coveralls