End 2 End tests speedup (#1180)

* Improving end 2 end tests, especially speed of execution and error, by implementing proper eventual asserts and timeouts.
* Add documentation for running individual tests
* Fixed String encoding in Patorni state check and error case
* Printing config as multi log line entity, makes it readable and grepable on startup
* Cosmetic changes to logs. Removed quotes from diff. Move all object diffs to text diff. Enabled padding for log level.
* Mount script with tools for easy logaccess and watching objects.
* Set proper update strategy for Postgres operator deployment.
* Move long running test to end. Move pooler test to new functions.
* Remove quote from valid K8s identifiers.

Makefile

@@ -24,12 +24,16 @@ PKG := `go list ./... | grep -v /vendor/`
 
 ifeq ($(DEBUG),1)
 	DOCKERFILE = DebugDockerfile
-	DEBUG_POSTFIX := -debug
+	DEBUG_POSTFIX := -debug-$(shell date hhmmss)
 	BUILD_FLAGS += -gcflags "-N -l"
 else
 	DOCKERFILE = Dockerfile
 endif
 
+ifeq ($(FRESH),1)
+  DEBUG_FRESH=$(shell date +"%H-%M-%S")
+endif
+
 ifdef CDP_PULL_REQUEST_NUMBER
 	CDP_TAG := -${CDP_BUILD_VERSION}
 endif
@@ -66,7 +70,7 @@ docker: ${DOCKERDIR}/${DOCKERFILE} docker-context
 	echo "Version ${VERSION}"
 	echo "CDP tag ${CDP_TAG}"
 	echo "git describe $(shell git describe --tags --always --dirty)"
-	cd "${DOCKERDIR}" && docker build --rm -t "$(IMAGE):$(TAG)$(CDP_TAG)$(DEBUG_POSTFIX)" -f "${DOCKERFILE}" .
+	cd "${DOCKERDIR}" && docker build --rm -t "$(IMAGE):$(TAG)$(CDP_TAG)$(DEBUG_FRESH)$(DEBUG_POSTFIX)" -f "${DOCKERFILE}" .
 
 indocker-race:
 	docker run --rm -v "${GOPATH}":"${GOPATH}" -e GOPATH="${GOPATH}" -e RACE=1 -w ${PWD} golang:1.8.1 bash -c "make linux"
@@ -97,4 +101,4 @@ test:
 	GO111MODULE=on go test ./...
 
 e2e: docker # build operator image to be tested
-	cd e2e; make e2etest
+	cd e2e; make e2etest