Controller: Include the object being reconciled in the error_policy

[felipesere]

Motivation

Error handling becomes more meaningful if we also have access to the object being reconciled.
That way we can extract its name or other relevant information for metrics or logging purposes.

Solution

Thread the Arc<K> object that is being reconciled through to the error policy.

[codecov-commenter]

Codecov Report

Merging #995 (59916d8) into master (251728e) will decrease coverage by 0.02%.
The diff coverage is 66.66%.

@@            Coverage Diff             @@
##           master     #995      +/-   ##
==========================================
- Coverage   72.60%   72.58%   -0.03%     
==========================================
  Files          64       64              
  Lines        4505     4505              
==========================================
- Hits         3271     3270       -1     
- Misses       1234     1235       +1     

Impacted Files	Coverage Δ
kube-runtime/src/controller/mod.rs	37.27% <66.66%> (ø)
kube-runtime/src/wait.rs	69.81% <0.00%> (-1.89%)	⬇️

[clux]

Looks very reasonable. Thank you!