Update newdelhi branch HEAD

Update newdelhi branch HEAD

Select&squash recent updates & fixes from master branch, adapted for new-delhi branch. Including:

https://gerrit.onap.org/r/c/ccsdk/oran/+/138693
Set serviceId in v2 policy_info to optional and blank by default - master

https://gerrit.onap.org/r/c/ccsdk/oran/+/138734
new onap logo

https://gerrit.onap.org/r/c/ccsdk/oran/+/138762
Improving code-coverage for the Handle non transient policy deletion bug fix - master

https://gerrit.onap.org/r/c/ccsdk/oran/+/138788
Enable springboot test for AsyncRestClientTest

https://gerrit.onap.org/r/c/ccsdk/oran/+/138787
Re-arrange application properties
*PARTIAL

https://gerrit.onap.org/r/c/ccsdk/oran/+/138772
Improve tests/issues found in Sonar report - A1 Oslo-Part2

https://gerrit.onap.org/r/c/ccsdk/oran/+/138827
Dependecy update in a1pms using spring parent 3.3.2

https://gerrit.onap.org/r/c/ccsdk/oran/+/138862
Improve tests/issues found in Sonar report - A1 Oslo/NewDelhi/Montreal/London-Part3-master

Issue-ID: CCSDK-3968
Change-Id: I40f7585e9416f03c8bec2b00d57dadb05bc624ca
Signed-off-by: lapentafd <francesco.lapenta@est.tech>