Add Hello There with TypeScript

[ClJarvis]

Add the TypeScript code that would display Hello There! on screen.

Follow the instructions on Contribute file to add a TS version of "Hello There!".

• Check to see if the language has a been assigned yet.
• If the issue has not been assigned, ask to be assigned that language.
• This is mainly meant for new to development people so please leave the issues for them.

Once assigned.

• Fork this repository.
• Clone the forked repository to your machine.
• Create a new branch titles Hello_There.extension, with the extension being the language you are adding. (EX Hello_There.ts)
• Write the code for Hello There! in the chosen language.
• Add a comment with a link to documentation.
• Push the code and open a pull request.

[Dnyanesh-Bachhav]

Hey, I have added Hello There in Typescript, please check it once...!!