add TypeScript AMM sample code

[mashharuki]

Hey!!
I participated in the DeFi Hackathon in Japan in December.

I had a very hard time getting the AMM functionality to work at that time and developed sample code.

This sample code contains code that allows you to try out a full range of AMM-related functions such as DepositAMM, WithdrawAMM, and Swap, in addition to CreateAMM.

I would like to contribute the sample code I created to make it easier for developers to use the AMM feature of XRPL in the future.

Please check it.

[Hackathon Summary]
https://lu.ma/xrpl-hack

[Product created in the hackathon]
https://github.com/mashharuki/DCCEX

[mDuo13]

At a quick glance, the code looks nice! I would like to try running the code, but I don't have much experience with TypeScript. Isn't there typically a package.json or similar file to list dependencies? If so, can you add a simple one to this PR?

Also, a note to other reviewers: We don't have an icon for TypeScript yet, so I think our code samples page will report a broken link unless we add one along with this PR and modify template/page-code-samples.html.jinja to use it (like e9d17c9 )

[mashharuki]

@mDuo13 Thank you for checking!

Of course!!

package.json is here!

https://github.com/mashharuki/DCCEX/tree/main/pkgs/scripts

↑ There are other config files in this folder

[tequdev]

@mashharuki

It is preferred that package.json and tsconfig.json be included in content/_code-samples/create-amm/ts.
Sample code must be completed in only content/_code-samples/create-amm/ts.

[mashharuki]

@tequdev ok! I will add package.json & other config files!!

[socket-security]

New dependencies detected. Learn more about Socket for GitHub ↗︎

Packages	Version	New capabilities	Transitives	Size	Publisher
ts-node	10.9.2	filesystem	+17	34.1 MB	blakeembrey
dotenv	16.3.1	environment	+0	71.6 kB	motdotla
typescript	5.3.3	filesystem	+0	32 MB	typescript-bot

[mashharuki]

@mDuo13 @Fuk2828 @tequdev I added package.json & .env.example & tsconfig.json files in this PR! Please check it!

[mashharuki]

Thank you everyone!!