Release Notes - Mnemonic - Version 0.15.0

** Sub-task
        * [MNEMONIC-636] - Release Candidate 1
        * [MNEMONIC-637] - Release Candidate 2
        * [MNEMONIC-638] - Finalize new version release and bump to next version
        * [MNEMONIC-640] - [JDK14] Upgrade issue about object is not an instance of declaring class
        * [MNEMONIC-641] - [JDK14] Specify JDK14 to build project in Maven
        * [MNEMONIC-642] - [JDK14]JDK14 CI build seems failed for invalid target release
        * [MNEMONIC-643] - Upgrade JDK11 to JDK14 in Ubuntu dockerfile
        * [MNEMONIC-644] - Failed to execute goal org.apache.maven.plugins on project mnemonic-common
        * [MNEMONIC-645] - Build and submit a new docker image to Docker hub for CI
        * [MNEMONIC-646] - [JDK14] Update docker_ubuntu.yml to use new docker image for CI
        * [MNEMONIC-647] - Port resgc to mnemonic-common
        * [MNEMONIC-651] - Package sun.nio.ch is not visible
        * [MNEMONIC-652] - Port primitives to mnemonic-common
** Bug
        * [MNEMONIC-634] - Bug fix in test.conf
        * [MNEMONIC-639] - Examples run failed due to deprecated extdirs
        * [MNEMONIC-648] - JDK 14 is causing maven shade plugin error when porting resgc dependency
        * [MNEMONIC-650] - Redesign the logo to remove the incubating information
        * [MNEMONIC-656] - Mnemonic-site code change was not reflected on the website
        * [MNEMONIC-657] - Mnemonic release script should be updated to remove compiled code files in prepared release candidates
        * [MNEMONIC-658] - Fix commit format issue
** New Feature
        * [MNEMONIC-630] - Move query interfaces to common
** Improvement
        * [MNEMONIC-653] - Clean up external dependencies of resgc and primitives
        * [MNEMONIC-654] - non 1024 aligned buffer size in NativeLibraryLoader class
** Task
        * [MNEMONIC-537] - Upgrading to OpenJDK 14
        * [MNEMONIC-589] - Document project releasing workflow
        * [MNEMONIC-631] - Release 0.14.0
        * [MNEMONIC-632] - Incorporate resgc and primatives from org.flowcomputing.commons
        * [MNEMONIC-633] - Add Xiaojin Jiao to committer page of Apache Mnemonic-site
        * [MNEMONIC-649] - Add 0.14.0 release information on the website