Handle alternate forms of resource status

[scothis]

We previously assumed that a resource either conformed to our notion of
status or didn't have a status field at all. If a status field existed,
but either didn't have the structure we expected or did have the
structure but was a pointer, would err.

Now we gracefully unpack the status as best we can, and safely ignore
cases where the structure does not conform to our ideal structure. In
those cases the functionality that would be applied is skipped. This
includes:

• calling status.InitializeConditions()
• setting status.ObservedGeneration
• normalizing the LastTransitionTime for conditions

Resolves #186 #108

[codecov]

Codecov Report

Merging #233 (31534f6) into main (2bcf4ee) will increase coverage by 0.42%.
The diff coverage is 79.48%.

❗ Current head 31534f6 differs from pull request most recent head d3f7560. Consider uploading reports for the commit d3f7560 to get more accurate results

@@            Coverage Diff             @@
##             main     #233      +/-   ##
==========================================
+ Coverage   65.41%   65.83%   +0.42%     
==========================================
  Files           9        9              
  Lines        1067     1127      +60     
==========================================
+ Hits          698      742      +44     
- Misses        348      360      +12     
- Partials       21       25       +4     

Impacted Files	Coverage Δ
internal/resources/dies/dies.go	0.00% <0.00%> (ø)
reconcilers/reconcilers.go	80.89% <86.11%> (+0.04%)	⬆️

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[mamachanko]

[thought, non-blocking]: I am wondering if the best-effort initialization of conditions could benefit from logs. It may easily get noisy though. I will be able to observe if rr initializes my resource's conditions, but if it doesn't logs may help.

[issue/thought, non-blocking]: As far as I can tell, MyResourceStatus.InitializeConditions() is an undocumented convention. I discovered it by reading other project's code. Maybe we could elevate it to a more prominent feature of the API through an interface or another mechanism.

LGTM 👍🏻