Reintroduce engine get client version v1 with commit in manifest (#7548)

* Include Commit-Hash in manifests
* Add commit method in BesuInfo
* Use 8 character hash in EngineGetClientVersionV1 and revert calculateVersion back to original spec

Signed-off-by: Matilda Clerke <matilda.clerke@consensys.net>
Co-authored-by: garyschulte <garyschulte@gmail.com>

util/build.gradle

@@ -23,6 +23,7 @@ jar {
       'Specification-Version': project.version,
       'Implementation-Title': archiveBaseName,
       'Implementation-Version': calculateVersion(),
+      'Commit-Hash': getGitCommitDetails(40).hash,
       'Automatic-Module-Name': 'org.hyperledger.besu.internal.util'
       )
   }