Add `generate-claims.sh`

[tothtamas28]

Related:

• runtimeverification/mx-semantics#275

Add: generate-claims.sh

Add submodules:

• deps/coindrip-protocol-sc
• deps/mx-exchange-sc
• deps/mx-sdk-rs

Add test contracts:

• src/testapi
• tests/contracts/foundrylike
• tests/contracts/test_coindrip
• tests/contracts/test_crowdfunding-esdt
• tests/contracts/test_multisig
• tests/contracts/test_pair

[tothtamas28]

@bbyalcinkaya, thank you for the proposed fixes, I've applied them and now the test job is passing.