initial exploration of passing a program modification account

[jawndiego]

• updated constraints -> programs. including updateV2Constraints -> updateProgram
• looks for 'ProgramsUpdated' event
• allows for the passing of a programModificationAccount as an optional parameter in set
• Adds a setAuthorization and checkAuthorization to see if programModificationAccount has permissions to make changes to sigRequestAccount
• initial exploration of calculating a estimateProgramDepositFee