Add raw template type to Semantic Model's types API

[dulajdilshan]

Purpose

$title

Approach

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Samples

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Remarks

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Check List

• Read the Contributing Guide
• Updated Change Log
• Checked Tooling Support (#)
• Added necessary tests
  • 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]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 75.05%. Comparing base (65c4cda) to head (47fc7b5).
Report is 111 commits behind head on master.

Additional details and impacted files

@@             Coverage Diff              @@
##             master   #43871      +/-   ##
============================================
- Coverage     75.06%   75.05%   -0.01%     
- Complexity    57436    57497      +61     
============================================
  Files          3535     3539       +4     
  Lines        222220   222304      +84     
  Branches      28869    28827      -42     
============================================
+ Hits         166808   166860      +52     
- Misses        46130    46182      +52     
+ Partials       9282     9262      -20     

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[hasithaa]

Can we add a test case?

[dulajdilshan]

Can we add a test case?

Added here tests/ballerina-compiler-api-test/src/test/java/io/ballerina/semantic/api/test/TypesTest.java