Consolidate convert and generate packages for datasource, provider, and resource

[bendbennett]

This PR consolidates the packages for <datasource|provider|resource>_convert, and <datasource|provider|resource>_generate, into datasource, provider, and resource, respectively.

The only purpose of the <datasource|provider|resource>_convert packages was to serve as a means to convert the types used by the Go bindings for terraform-plugin-codegen-spec into terraform-plugin-codegen-framework generator types. For example:

func convertBoolAttribute(a *datasource.BoolAttribute) (datasource_generate.GeneratorBoolAttribute, error) {
	if a == nil {
		return datasource_generate.GeneratorBoolAttribute{}, fmt.Errorf("*datasource.BoolAttribute is nil")
	}

	return datasource_generate.GeneratorBoolAttribute{
		BoolAttribute: schema.BoolAttribute{
			Required:            isRequired(a.ComputedOptionalRequired),
			Optional:            isOptional(a.ComputedOptionalRequired),
			Computed:            isComputed(a.ComputedOptionalRequired),
			Sensitive:           isSensitive(a.Sensitive),
			Description:         description(a.Description),
			MarkdownDescription: description(a.Description),
			DeprecationMessage:  deprecationMessage(a.DeprecationMessage),
		},

		AssociatedExternalType: generatorschema.NewAssocExtType(a.AssociatedExternalType),
		CustomType:             a.CustomType,
		Validators:             a.Validators,
	}, nil
}

As these functions are essentially constructors for the terraform-plugin-codegen-framework generator types, <datasource|provider|resource>_convert, and <datasource|provider|resource>_generate packages have been consolidated by adding constructors, removing the <datasource|provider|resource>_convert packages and renaming the <datasource|provider|resource>_generate packages to datasource, provider, and resource, respectively.

A typical constructor looks as follows:

func NewGeneratorBoolAttribute(a *datasource.BoolAttribute) (GeneratorBoolAttribute, error) {
	if a == nil {
		return GeneratorBoolAttribute{}, fmt.Errorf("*datasource.BoolAttribute is nil")
	}

	c := convert.NewComputedOptionalRequired(a.ComputedOptionalRequired)

	s := convert.NewSensitive(a.Sensitive)

	d := convert.NewDescription(a.Description)

	dm := convert.NewDeprecationMessage(a.DeprecationMessage)

	return GeneratorBoolAttribute{
		BoolAttribute: schema.BoolAttribute{
			Required:            c.IsRequired(),
			Optional:            c.IsOptional(),
			Computed:            c.IsComputed(),
			Sensitive:           s.IsSensitive(),
			Description:         d.Description(),
			MarkdownDescription: d.Description(),
			DeprecationMessage:  dm.DeprecationMessage(),
		},

		AssociatedExternalType: generatorschema.NewAssocExtType(a.AssociatedExternalType),
		CustomType:             a.CustomType,
		Validators:             a.Validators,
	}, nil
}

[austinvalle]

Thanks for doing this refactor! 😌

LGTM 🚀

[austinvalle]

sometimes I wonder how GitHub determines it's diffs 😕 lol

[github-actions]

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