Add pool configuration into CRD & charts. Add preliminary documentation. Rename NumberOfInstances to Replicas like in Deployment. Mention couple of potential improvement points for connection pool specification.  | 
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|---|---|---|
| .. | ||
| const.go | ||
| crds.go | ||
| doc.go | ||
| marshal.go | ||
| operator_configuration_type.go | ||
| postgresql_type.go | ||
| register.go | ||
| util.go | ||
| util_test.go | ||
| zz_generated.deepcopy.go | ||