Created focused/specific interfaces for each function

[TwitchBronBron]

Many of the roku-deploy public functions take the RokuDeployOptions interface. That's very confusing because it's huge and has many options that many of the functions don't actually need. We should do the following:

• create a unique interface for each of the public functions that only declare the properties they actually use/require.
• export the interfaces and give them helpful names so external developers can use them in their code.

[MilapNaik]

in #126