feat: create pair and add liquidity on AMM in `launch_memecoin` function

[AbdelStark]

Issue: Implement Pair Creation and Liquidity Addition in launch_memecoin Function

Description

We need to enhance the launch_memecoin function to include the creation of a trading pair and the addition of liquidity to an Automated Market Maker (AMM) platform. This process involves using the Memecoin contract's internal balances (both the memecoin itself and a counterparty token like ETH or USDT) to establish the initial liquidity in the trading pool.

Requirements

1. Pair Creation: Implement functionality within launch_memecoin to create a trading pair for Memecoin and a counterparty token (e.g., USDT, ETH) on the selected AMM platform.
2. Liquidity Addition: Modify launch_memecoin to use the internal balances of Memecoin (MT) and the counterparty token, which are sent to the Memecoin contract address, to add liquidity to the newly created trading pair.

Example Workflow

• Memecoin (MT) is deployed at address 0xAA.
• The owner sends 1000 MT tokens and 1000 USDC to address 0xAA.
• The launch_memecoin function utilizes these internal balances (1000 MT and 1000 USDC) to add liquidity to the MT/USDC pair on the selected AMM.

Implementation Notes

• Ensure that the function checks for sufficient balances of both tokens before attempting to add liquidity.
• Consider gas optimization and security practices while implementing the liquidity addition process.
• Implement error handling for scenarios where the pair creation or liquidity addition fails.

[rcatalan98]

gm! please also add @dubzn