Issue tracker for #8, #9, #12

[diamondburned]

Since the 3 new issues seem very daunting, this issue will be created just to
keep track of the progress of the other issues.

Package changes

• Decouple everything away from girgen
• girgen to only contain Generator
  • Common generator sets containing the right pens and side effects to
    write code to; ideally, both NamespaceGenerator and FileGenerator
    should easily be able to include them.
  • Subpackage namespacegen having NamespaceGenerator
  • Subpackage filegen having FileGenerator that extends
    NamespaceGenerator
• generators to contain all generators for classes, interfaces, enums,
  records, etc.
  • Subpackage callable that generates specifically just callables.
• String utilities (mostly concerned with casing) should go into strcases.
• Comment utilities should go into cmt.
• Templating utilities should go into gotmpl.
• Hard-wired types, such as primitives, should go into types.
  • Type conversion, resolving and trees should go here as well.

Illustrative charts

Directory Tree

gir
├── girgen
│   ├── cmt
│   │   └── cmt.go
│   ├── file
│   │   └── file.go
│   ├── generators
│   │   ├── callable
│   │   │   ├── callable.go
│   │   │   └── c.go
│   │   ├── alias.go
│   │   ├── bitfield.go
│   │   ├── callback.go
│   │   ├── class.go
│   │   ├── enum.go
│   │   ├── function.go
│   │   ├── generators.go
│   │   ├── interface.go
│   │   └── record.go
│   ├── gotmpl
│   │   └── gotmpl.go
│   ├── logger
│   │   └── logger.go
│   ├── strcases
│   │   ├── capitalized.txt
│   │   └── strcases.go
│   ├── types
│   │   ├── typeconv
│   │   │   ├── c->go.go
│   │   │   ├── go->c.go
│   │   │   └── typeconv.go
│   │   ├── filter.go
│   │   ├── generator.go
│   │   ├── resolve.go
│   │   ├── tree.go
│   │   └── types.go
│   ├── file.go
│   ├── generator.go
│   └── namespace.go
├── pkgconfig
│   ├── pkgconfig.go
│   └── pkgconfig_test.go
├── gir.go
├── LICENSE.md
├── repository.go
└── types.go

Issue Trackers

Since this is a huge refactor, there will be a lot code to be (re)written.
Because of that, the order of these issues are organized in this order.

• File generators, File generators #9
  • This change involves writing a new file generator instance.
• Type Resolver interfaces, Class inheritance requires global namespace swapping #8
  • This change involves adding new interfaces into the girgen package that
    allows exposing the current namespaces as well as a logging API.
• Conservative pointer conversion and handling, Be more conservative in converting types #12
  • This change will allow some edge cases to be user-handled.
  • It removes the complicated convertRef routine.
• Array reference types, Invalid type/array markings #10