Merge pull request #45 from authzforce/dependabot/maven/pdp-testutils/com.fasterxml.jackson.core-jackson-databind-2.9.10.3

Bump jackson-databind from 2.9.10.1 to 2.9.10.3 in /pdp-testutils

Bumps [jackson-databind](https://github.com/FasterXML/jackson) from 2.9.10.1 to 2.9.10.3.
- [Release notes](https://github.com/FasterXML/jackson/releases)
- [Commits](https://github.com/FasterXML/jackson/commits

)

Signed-off-by: dependabot[bot] <support@github.com>

# Conflicts:
#	pdp-cli/pom.xml
#	pdp-engine/pom.xml
#	pdp-io-xacml-json/pom.xml
#	pdp-testutils/pom.xml
#	pom.xml

- Upgraded dependency authzforce-ce-core-pdp-api to 16.2.0

- Fixed HTML doc formatting in pdp.xsd and improved content.

- Upgraded authzforce-ce-core-pdp-api version to 16.1.0 adding
PolicyProvider#getCandidateRootPolicy() interface
- Changed PDP config XSD
	- Simplified versioning (version="7.1" and remove minor version from
namespace)
	- 'rootPolicyRef' no longer mandatory. If not specified,
PolicyProvider#getCandidateRootPolicy() on the 'policyProvider' is used
to specify the root policy
- Added CoreStaticPolicyProvider#getCandidateRootPolicy() to implement
PolicyProvider#getCandidateRootPolicy()

- Updated license headers for year 2020
- pdp-cli: fixed pretty-print (-p) option
- pdp-testutils:
  - Renamed class PdpTest to XacmlXmlPdpTest
(org.ow2.authzforce.core.pdp.testutil package)
  - Security fix: jackson-databind upgraded to v2.9.10.1

- Fixed CVE-2019-14439 (upgrade jackson-databind version for
pdp-testutils)
Simplified PDP configuration schema (XSD):
- v6.0.0 -> v7.0.0.0
- refPolicyProvider and rootPolicyProvider elements replaced by simpler
'policyProvider' 'rootPolicyRef' elements (new type
TopLevelPolicyElementRef)
- StaticRootPolicyProvider and StaticRefPolicyProvider replaced by one
StaticPolicyProvider type