When core

[sbayer55]

Description

Added org.opensearch.dataprepper.expression to public context
Added DI support for DataPrepperExpressionParser

Check List

• New functionality includes testing.
• New functionality has been documented.
  • New functionality has javadoc added
• Commits are signed with a real name per the DCO

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.
For more information on following Developer Certificate of Origin and signing off your commits, please check here.

[codecov-commenter]

Codecov Report

Merging #1157 (acb0ada) into main (5ecec92) will increase coverage by 0.01%.
The diff coverage is 100.00%.

@@             Coverage Diff              @@
##               main    #1157      +/-   ##
============================================
+ Coverage     91.89%   91.91%   +0.01%     
- Complexity      703      704       +1     
============================================
  Files            87       87              
  Lines          2037     2042       +5     
  Branches        171      171              
============================================
+ Hits           1872     1877       +5     
  Misses          122      122              
  Partials         43       43              

Impacted Files	Coverage Δ
...in/java/com/amazon/dataprepper/ContextManager.java	100.00% <100.00%> (ø)
...zon/dataprepper/plugin/PluginArgumentsContext.java	100.00% <100.00%> (ø)

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