Add a CLI for common operations

[ryangoree]

• Proposal creation
• Proposal execution
• Deployment
• ?

[ryangoree]

I think I can only link 10 PRs because it won't let me link any more. Here are more:

• 355

• 356

• 357

• 358

• 359

• 360

[ryangoree]

• 361

• 362

• 363

• 364

• 365

• 366

• 367

• 368

[ryangoree]

early retrospective: this should have been multiple tasks

[ryangoree]

• 370

• 371

• 372

[ryangoree]

• 374

• 375

• 380