Implement NodeAssembler interface on all values

[petar]

Non-parametric values:

• [x] bool
  • [ ] test
• [x] byte
  • [ ] test
• [x] char
  • [ ] test
• [x] int
  • [ ] test
• [x] float
  • [ ] test
• [x] string
  • [ ] test
• [x] nothing
  • [ ] test
• [x] bytes
  • [ ] test
• [ ] any
  • [ ] test

Parametric/codegen'd values:

• [ ] singleton
  • [ ] bool
  • [ ] byte
  • [ ] char
  • [ ] int
  • [ ] float
  • [ ] string
  • [ ] test
• [ ] map
  • [ ] test
• [ ] list
  • [ ] test
• [ ] structure
  • [ ] test
• [ ] functional call and return
  • [ ] test
• [ ] inductive
  • [ ] test
• [ ] link
  • [ ] test