Fix print content for -v -h & version for version -h as well

[Jaagrav]

Purpose

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When we run the bal -v -h command on any operating system, it will simply returns the ballerina version.

Ballerina Swan Lake Beta 6
Language specification 2021R1
Update Tool 1.3.7-rc1
However when we run the ballerina version -h command, it returns help window.

Closes #199

Goals

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Display version and ballerina information post help information when running bal -v -h or bal version -h or bal --version --help, etc.

Approach

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Modify the bal shell file to print version and distribution info when executing the above mentioned commands.

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• Followed secure coding standards in http://wso2.com/technical-reports/wso2-secure-engineering-guidelines? yes/no
• Ran FindSecurityBugs plugin and verified report? yes/no
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[sonarcloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarCloud

[Jaagrav]

@keizer619 Please take a look