Fix update or insert in InMemoryTable using EventChunk

[suhothayan]

Purpose

Fix #1243

[codecov-io]

Codecov Report

Merging #1503 into master will increase coverage by 0.05%.
The diff coverage is 91.3%.

@@             Coverage Diff              @@
##             master    #1503      +/-   ##
============================================
+ Coverage     68.14%   68.19%   +0.05%     
  Complexity       42       42              
============================================
  Files           643      644       +1     
  Lines         26984    27028      +44     
  Branches       4260     4264       +4     
============================================
+ Hits          18387    18433      +46     
+ Misses         6813     6808       -5     
- Partials       1784     1787       +3

Impacted Files	Coverage Δ	Complexity Δ
...dhi/core/util/collection/operator/MapOperator.java	0% <ø> (ø)	0 <0> (ø)	⬇️
.../operator/OverwriteTableIndexOperatorForCache.java	100% <ø> (ø)	0 <0> (ø)	⬇️
...llection/operator/OverwriteTableIndexOperator.java	100% <ø> (ø)	0 <0> (ø)	⬇️
...e/util/collection/operator/CollectionOperator.java	17.64% <0%> (-0.27%)	0 <0> (ø)
...e/util/collection/operator/EventChunkOperator.java	18.98% <0%> (-0.25%)	0 <0> (ø)
...va/io/siddhi/core/util/parser/SiddhiAppParser.java	84.83% <100%> (ø)	0 <0> (ø)	⬇️
...i/core/util/collection/operator/IndexOperator.java	90.32% <100%> (ø)	0 <0> (ø)	⬇️
...ction/operator/SnapshotableEventQueueOperator.java	97.61% <100%> (+0.02%)	0 <0> (ø)	⬇️
.../main/java/io/siddhi/core/table/InMemoryTable.java	99.01% <100%> (+0.37%)	0 <0> (ø)	⬇️
...src/main/java/io/siddhi/core/table/CacheTable.java	96.37% <100%> (+0.13%)	0 <0> (ø)	⬇️
... and 10 more

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