Add basics/cross-program-invocation/poseidon

[adpthegreat]

• added poseidon create_program_invocation program to basics/cross-program-invocation folder
• updated dependencies to use latest versions of anchor
• used pnpm in place of yarn, , replaced all instances of yarn with pnpm
• wrote solana bankrun tests
• ran pnpm fix

General purpose CPIs are not yet supported in Poseidon, an issue has already been raised in the repository , https://github.com/Turbin3/poseidon/issues/9 , but I still improvised and added tests as a workaround regardless of Poseidons limitations