Create AddClaimCommandParser object

[RezwanAhmed123]

Created a parser for AddClaimCommand such that the user inputs can be successfully parsed.

This class is still a placeholder and unable to check for valid claim ids and insurance plan ownership.

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 6.66667% with 42 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
...du/address/logic/parser/AddClaimCommandParser.java	0.00%	15 Missing :warning:
.../seedu/address/logic/commands/AddClaimCommand.java	0.00%	14 Missing :warning:
...in/java/seedu/address/logic/parser/ParserUtil.java	0.00%	10 Missing :warning:
src/main/java/seedu/address/logic/Messages.java	0.00%	2 Missing :warning:
.../seedu/address/logic/parser/AddressBookParser.java	0.00%	1 Missing :warning:

Files with missing lines	Coverage Δ	Complexity Δ
...du/address/logic/commands/AddInsuranceCommand.java	21.42% <ø> (ø)	3.00 <0.00> (ø)
...ain/java/seedu/address/logic/parser/CliSyntax.java	88.88% <100.00%> (+3.17%)	1.00 <0.00> (ø)
.../seedu/address/logic/parser/AddressBookParser.java	91.30% <0.00%> (-8.70%)	14.00 <0.00> (ø)
src/main/java/seedu/address/logic/Messages.java	80.00% <0.00%> (-8.89%)	3.00 <0.00> (ø)
...in/java/seedu/address/logic/parser/ParserUtil.java	75.00% <0.00%> (-17.86%)	15.00 <0.00> (ø)
.../seedu/address/logic/commands/AddClaimCommand.java	0.00% <0.00%> (ø)	0.00 <0.00> (?)
...du/address/logic/parser/AddClaimCommandParser.java	0.00% <0.00%> (ø)	0.00 <0.00> (?)

[RezwanAhmed123]

refer to PR #101