Add in-place upgrade controllers for kcp and md

[vivek-koppuru]

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Description of changes:

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[codecov]

Codecov Report

Attention: 249 lines in your changes are missing coverage. Please review.

Comparison is base (5a474bf) 71.72% compared to head (0ad288e) 71.36%.
Report is 39 commits behind head on main.

❗ Current head 0ad288e differs from pull request most recent head 29268db. Consider uploading reports for the commit 29268db to get more accurate results

Files	Patch %	Lines
...s/kubeadmcontrolplane_inplaceupgrade_controller.go	0.00%	129 Missing ⚠️
...ers/machinedeployment_inplaceupgrade_controller.go	0.00%	98 Missing ⚠️
controllers/factory.go	0.00%	22 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #7327      +/-   ##
==========================================
- Coverage   71.72%   71.36%   -0.36%     
==========================================
  Files         559      562       +3     
  Lines       43368    43744     +376     
==========================================
+ Hits        31104    31220     +116     
- Misses      10549    10805     +256     
- Partials     1715     1719       +4     

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[vivek-koppuru]

Separating the PRs into kcp and md

KCP: #7361
MD: #7369