Function getAddValidatorToPoolInstructionAsync

(Staker only) Adds stake account delegated to validator to the pool's list of managed validators. The stake account will have the rent-exempt amount plus max( crate::MINIMUM_ACTIVE_STAKE, solana_program::stake::tools::get_minimum_delegation() ). It is funded from the stake pool reserve. 0. [w] Stake pool

1. [s] Staker
2. [w] Reserve stake account
3. [] Stake pool withdraw authority
4. [w] Validator stake list storage account
5. [w] Stake account to add to the pool
6. [] Validator this stake account will be delegated to
7. [] Rent sysvar
8. [] Clock sysvar
9. '[]' Stake history sysvar
10. '[]' Stake config sysvar
11. [] System program
12. [] Stake program User data: optional non-zero u32 seed used for generating the validator stake address