[POLICY] Use apex 2.4.4 and drools 1.7.5

Update version numbers for some Policy images.
Fixed the following issues:
- match prov-status with both "ACTIVE" and "active" in drools-apps
- close stdin & stdout in apex-pdp CLI editor
- add stringify method to apex-pdp execution context
- set dmaap fetch timeout for apex-pdp

Issue-ID: POLICY-2893
Change-Id: I30017d6f2f01034b2f8721c800925dcab79672b3
Signed-off-by: Jim Hahn <jrh3@att.com>
diff --git a/kubernetes/policy/components/policy-apex-pdp/values.yaml b/kubernetes/policy/components/policy-apex-pdp/values.yaml
index 6243d26..23788e2 100755
--- a/kubernetes/policy/components/policy-apex-pdp/values.yaml
+++ b/kubernetes/policy/components/policy-apex-pdp/values.yaml
@@ -52,7 +52,7 @@
 #################################################################
 # application image
 repository: nexus3.onap.org:10001
-image: onap/policy-apex-pdp:2.4.3
+image: onap/policy-apex-pdp:2.4.4
 pullPolicy: Always
 
 # flag to enable debugging - application support required