Implemented GetDimensions module

[Smit1603]

• This pull request will resolve issue #19
• I have implemented GetDimensions module and tested it successfully
• Kindly review and let me know whether any further changes are required or not

[Smit1603]

• I have made necessary changes as mentioned by @vgvassilev and @sudo-panda

• Kindly review changes and pls let me know whether any further improvement is required or not

• Changes made :

• • Renamed OpaqueQualType to Type
• • Modified types wherever necessary

[Smit1603]

• Sorry was unaware about naming format used
• Have changed to snake_case format
• Please review

[vgvassilev]

Can you squash all changes into one commit with a good commit message?

[Smit1603]

• @vgvassilev , I hope your requirement has been met.
• If any further changes are required pls let me know

[sudo-panda]

@Smit1603 instead of merging, rebase your branch on the master branch.

[Smit1603]

• @sudo-panda I have made some changes
• Were this the changes recommended by you and is it now okay??

[sudo-panda]

@vgvassilev can you run the CI before merging?