Add semantic ResourceQuota comparison utility

[sajjadghf]

Summary

The Python client has no equivalent to the Go apimachinery's equality.Semantic.DeepEqual / resource.Quantity.Cmp() for comparing ResourceQuota objects.

When building controllers or automation that reconciles ResourceQuota resources, comparing two quota objects with plain string or == equality produces false negatives because Kubernetes allows the same quantity to be expressed in multiple representations:

Value A	Value B	Semantically equal?	== result
"1"	"1000m"	✅ yes	❌ False
"1Gi"	"1073741824"	✅ yes	❌ False
"0.5"	"500m"	✅ yes	❌ False

The Go operator ecosystem handles this transparently via:

• equality.Semantic.DeepEqual
• resource.Quantity.Cmp()

Python users have no equivalent and must write their own normalisation logic.

Proposed Solution

Add kubernetes/utils/resource_quota.py with:

• get_resource_list_diff(a, b) — semantic diff of two ResourceList dicts, backed by the existing parse_quantity
• resource_quotas_equal(quota_a, quota_b) — boolean guard mirroring the Go reconciler pattern
• compare_resource_quotas(api_client, ...) — cluster-aware helper that fetches and compares two quotas

Export all public symbols from kubernetes.utils.

References

• Go equivalent: https://github.com/kubernetes/apimachinery/blob/master/pkg/api/equality/semantic.go
• Go Quantity.Cmp: https://github.com/kubernetes/apimachinery/blob/master/pkg/api/resource/quantity.go
• Existing Python parse_quantity: kubernetes/utils/quantity.py

[sajjadghf]

Can I work on this myself?