Adding 1.3.0 release notes - (1.3 branch)

[bharath-techie]

Signed-off-by: Bharathwaj G bharath78910@gmail.com

Description

[Describe what this change achieves]

Issues Resolved

[List any issues this PR will resolve]

Check List

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[codecov-commenter]

Codecov Report

❗ No coverage uploaded for pull request base (1.3@229a84a). Click here to learn what that means.
The diff coverage is n/a.

@@          Coverage Diff           @@
##             1.3     #109   +/-   ##
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  Coverage       ?   83.52%           
  Complexity     ?      555           
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  Files          ?       61           
  Lines          ?     2058           
  Branches       ?      146           
======================================
  Hits           ?     1719           
  Misses         ?      234           
  Partials       ?      105           

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