HDDS-4117. Normalize Keypath for listKeys.

[bharatviswa504]

What changes were proposed in this pull request?

Normalize Keypath for listKeys.
When ozone.om.enable.filesystem.paths, OM normalizes path, and stores the Keyname in the OM DB KeyTable.

When listKeys uses given keyName(not normalized key path) as prefix and Starkey the list-keys will return an empty results.

Similar to HDDS-4102, we should normalize Starkey and keyPrefix.

Note:
This PR is based on top of #1328
To get CI, posted a PR with both fixes included.
The changes for this commit start from ab0cee5

What is the link to the Apache JIRA

https://issues.apache.org/jira/browse/HDDS-4117

How was this patch tested?

Added a test.

[codecov-commenter]

Codecov Report

Merging #1331 into master will decrease coverage by 0.06%.
The diff coverage is 100.00%.

@@ Coverage Diff @@## master #1331 +/- ##
============================================
- Coverage 74.41% 74.35% -0.07% - Complexity 10301 10324 +23 
============================================
Files 984 985 +1 Lines 50394 50549 +155 Branches 4914 4937 +23 ============================================
+ Hits 37503 37587 +84 - Misses 10531 10600 +69 - Partials 2360 2362 +2 

Impacted Files	Coverage Δ	Complexity Δ
...src/main/java/org/apache/hadoop/ozone/OmUtils.java	80.66% <100.00%> (+1.08%)	49.00 <3.00> (+3.00)
...ava/org/apache/hadoop/ozone/om/KeyManagerImpl.java	65.34% <100.00%> (+0.43%)	140.00 <4.00> (+4.00)
...pache/hadoop/ozone/om/request/OMClientRequest.java	81.17% <100.00%> (-1.25%)	29.00 <1.00> (-2.00)
...hdds/scm/container/common/helpers/ExcludeList.java	78.26% <0.00%> (-21.74%)	17.00% <0.00%> (-5.00%)
...doop/ozone/om/exceptions/OMNotLeaderException.java	48.48% <0.00%> (-18.19%)	3.00% <0.00%> (-2.00%)
.../apache/hadoop/hdds/scm/node/StaleNodeHandler.java	88.88% <0.00%> (-11.12%)	4.00% <0.00%> (ø%)
...e/hadoop/ozone/recon/tasks/OMDBUpdatesHandler.java	60.93% <0.00%> (-9.66%)	9.00% <0.00%> (-8.00%)
...ache/hadoop/ozone/om/codec/S3SecretValueCodec.java	90.90% <0.00%> (-9.10%)	3.00% <0.00%> (-1.00%)
...va/org/apache/hadoop/hdds/utils/db/RDBMetrics.java	92.85% <0.00%> (-7.15%)	14.00% <0.00%> (-1.00%)
...ozone/container/ozoneimpl/ContainerController.java	76.31% <0.00%> (-5.27%)	13.00% <0.00%> (-1.00%)
... and 44 more

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[bharatviswa504]

Closing this. Opened #1451 to track this issue.