Preflight Checks doc

[raymond-zhang00]

Issue #, if available: Preflight check design doc

Description of changes: Adding preflight check design doc

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[codecov[bot]]

Codecov Report

Merging #2730 (cb0a87d) into main (12ace4d) will increase coverage by 6.18%. The diff coverage is n/a.

:exclamation: Current head cb0a87d differs from pull request most recent head 0ea187a. Consider uploading reports for the commit 0ea187a to get more accurate results

@@            Coverage Diff             @@
##             main    #2730      +/-   ##
==========================================
+ Coverage   57.49%   63.67%   +6.18%     
==========================================
  Files         310      351      +41     
  Lines       25562    27883    +2321     
==========================================
+ Hits        14696    17754    +3058     
+ Misses       9529     8817     -712     
+ Partials     1337     1312      -25     

Impacted Files	Coverage Δ
.../api/v1alpha1/tinkerbelltemplateconfig_defaults.go	57.50% <0.00%> (-41.51%)	:arrow_down:
pkg/providers/tinkerbell/assert.go	43.94% <0.00%> (-33.84%)	:arrow_down:
...roviders/tinkerbell/hardware/catalogue_hardware.go	81.46% <0.00%> (-10.85%)	:arrow_down:
pkg/validations/createvalidations/gitops.go	70.00% <0.00%> (-8.58%)	:arrow_down:
pkg/providers/tinkerbell/validate.go	77.93% <0.00%> (-3.96%)	:arrow_down:
pkg/curatedpackages/packagecontrollerclient.go	96.20% <0.00%> (-3.80%)	:arrow_down:
pkg/cluster/cloudstack.go	58.62% <0.00%> (-3.20%)	:arrow_down:
pkg/api/v1alpha1/cloudstackdatacenterconfig.go	19.44% <0.00%> (-2.44%)	:arrow_down:
pkg/providers/vsphere/defaults.go	68.96% <0.00%> (-2.23%)	:arrow_down:
pkg/api/v1alpha1/snowmachineconfig.go	84.61% <0.00%> (-1.10%)	:arrow_down:
... and 178 more

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[taneyland]

/lgtm /approve

[eks-distro-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: taneyland

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