Add extract to constant code action

[TharushiJay]

Purpose

This PR implements the Extract to constant code action, which creates a const field from the selected expression and substitutes a field reference.

Fixes #36568

Samples

https://user-images.githubusercontent.com/27485094/177472213-a490db42-2488-4785-97ed-a99c14c14f11.mov

Check List

• [x] Read the Contributing Guide
• [ ] Updated Change Log
• [ ] Checked Tooling Support (#<Issue Number>)
• [x] Added necessary tests
  • [x] Unit Tests
  • [ ] Spec Conformance Tests
  • [ ] Integration Tests
  • [ ] Ballerina By Example Tests
• [ ] Increased Test Coverage
• [ ] Added necessary documentation
  • [ ] API documentation
  • [ ] Module documentation in Module.md files
  • [ ] Ballerina By Examples

[codecov[bot]]

Codecov Report

Merging #36876 (14581b9) into 2201.2.x (ea3aa19) will increase coverage by 0.00%. The diff coverage is 93.54%.

@@             Coverage Diff             @@
##             2201.2.x   #36876   +/-   ##
===========================================
  Coverage       74.75%   74.76%           
- Complexity      50073    50087   +14     
===========================================
  Files            3334     3335    +1     
  Lines          192936   192997   +61     
  Branches        25207    25214    +7     
===========================================
+ Hits           144234   144287   +53     
- Misses          40374    40377    +3     
- Partials         8328     8333    +5     

Impacted Files	Coverage Δ
.../langserver/common/constants/CommandConstants.java	90.00% <ø> (ø)
...eaction/providers/ExtractToConstantCodeAction.java	91.83% <91.83%> (ø)
.../langserver/codeaction/CodeActionNodeAnalyzer.java	81.73% <100.00%> (+1.00%)	:arrow_up:
...allerinalang/langserver/common/utils/NameUtil.java	71.91% <100.00%> (ø)
...b/lang.__internal/src/main/ballerina/int-range.bal	66.66% <0.00%> (-4.77%)	:arrow_down:
...runtime/internal/scheduling/WorkerDataChannel.java	86.33% <0.00%> (-3.11%)	:arrow_down:
...rver/codeaction/providers/TypeGuardCodeAction.java	63.01% <0.00%> (-2.74%)	:arrow_down:
.../ballerina/runtime/internal/scheduling/Strand.java	78.66% <0.00%> (-0.84%)	:arrow_down:
...rinalang/langserver/codeaction/CodeActionUtil.java	87.08% <0.00%> (+0.27%)	:arrow_up:
...ava/io/ballerina/compiler/api/impl/NodeFinder.java	67.90% <0.00%> (+0.84%)	:arrow_up:

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[github-actions[bot]]

This PR has been open for more than 15 days with no activity. This will be closed in 3 days unless the stale label is removed or commented.