fix(cmd/params): Repair encapsulation for network params

[distractedm1nd]

PR #1073 will temporarily break the encapsulation of the params package by exporting a setter of the default network.

A node option should be made for this, and the default values that were removed in 1073 should be restored once possible without convoluted logic. This means NodeOptions will need to take the node type and network, to be able to set the default values correctly.

This is important and will be completed as part of the refactoring efforts.