Development of token management logic supported by CrossTrade

[zzooppii]

Some of the tokens we support have a mapping structure, so just entering the l2token address when requesting will result in the l1token address being entered correctly.
so Add functions that request and provide with mapping structure

Develop the following functions:

• make the mapping structure & entering mapping function
• develop the requestFW on L2 (only mapping)

don't need

• develop the provideFW on L1 (only mapping)

Test the following:

test - Check whether the add mapping function runs well

• Is the request successful after registering mapping
• Is the request not possible after deleting the mapping