Remove MetadataType from core package object and normalize JSON metadataType values (#1983)

* [wip]

Signed-off-by: Alex Goodman <wagoodman@users.noreply.github.com>

* distinct the package metadata functions

Signed-off-by: Alex Goodman <wagoodman@users.noreply.github.com>

* remove metadata type from package core model

Signed-off-by: Alex Goodman <wagoodman@users.noreply.github.com>

* incorporate review feedback for names

Signed-off-by: Alex Goodman <wagoodman@users.noreply.github.com>

* add RPM archive metadata and split parser helpers

Signed-off-by: Alex Goodman <wagoodman@users.noreply.github.com>

* clarify the python package metadata type

Signed-off-by: Alex Goodman <wagoodman@users.noreply.github.com>

* rename the KB metadata type

Signed-off-by: Alex Goodman <wagoodman@users.noreply.github.com>

* break hackage and composer types by use case

Signed-off-by: Alex Goodman <wagoodman@users.noreply.github.com>

* linting fix

Signed-off-by: Alex Goodman <wagoodman@users.noreply.github.com>

* fix encoding and decoding for syft-json and cyclonedx

Signed-off-by: Alex Goodman <wagoodman@users.noreply.github.com>

* bump json schema to 11

Signed-off-by: Alex Goodman <wagoodman@users.noreply.github.com>

* update cyclonedx-json snapshots

Signed-off-by: Alex Goodman <wagoodman@users.noreply.github.com>

* update cyclonedx-xml snapshots

Signed-off-by: Alex Goodman <wagoodman@users.noreply.github.com>

* update spdx-json snapshots

Signed-off-by: Alex Goodman <wagoodman@users.noreply.github.com>

* update spdx-tv snapshots

Signed-off-by: Alex Goodman <wagoodman@users.noreply.github.com>

* update syft-json snapshots

Signed-off-by: Alex Goodman <wagoodman@users.noreply.github.com>

* correct metadata type in stack yaml parser test

Signed-off-by: Alex Goodman <wagoodman@users.noreply.github.com>

* fix bom-ref redactor for cyclonedx-xml

Signed-off-by: Alex Goodman <wagoodman@users.noreply.github.com>

* add tests for legacy package metadata names

Signed-off-by: Alex Goodman <wagoodman@users.noreply.github.com>

* regenerate json schema v11

Signed-off-by: Alex Goodman <wagoodman@users.noreply.github.com>

* fix legacy HackageMetadataType reflect type value check

Signed-off-by: Alex Goodman <wagoodman@users.noreply.github.com>

* fix linting

Signed-off-by: Alex Goodman <wagoodman@users.noreply.github.com>

* packagemetadata discovery should account for type shadowing

Signed-off-by: Alex Goodman <wagoodman@users.noreply.github.com>

* fix linting

Signed-off-by: Alex Goodman <wagoodman@users.noreply.github.com>

* fix cli tests

Signed-off-by: Alex Goodman <wagoodman@users.noreply.github.com>

* bump json schema version to v12

Signed-off-by: Alex Goodman <wagoodman@users.noreply.github.com>

* update json schema to incorporate changes from main

Signed-off-by: Alex Goodman <wagoodman@users.noreply.github.com>

* add syft-json legacy config option

Signed-off-by: Alex Goodman <wagoodman@users.noreply.github.com>

* add tests around v11-v12 json decoding

Signed-off-by: Alex Goodman <wagoodman@users.noreply.github.com>

* add docs for SYFT_JSON_LEGACY

Signed-off-by: Alex Goodman <wagoodman@users.noreply.github.com>

* rename structs to be compliant with new naming scheme

Signed-off-by: Alex Goodman <wagoodman@users.noreply.github.com>

---------

Signed-off-by: Alex Goodman <wagoodman@users.noreply.github.com>

syft/format/common/spdxhelpers/homepage_test.go

@@ -23,7 +23,7 @@ func Test_Homepage(t *testing.T) {
 		{
 			name: "from gem",
 			input: pkg.Package{
-				Metadata: pkg.GemMetadata{
+				Metadata: pkg.RubyGemspec{
 					Homepage: "http://a-place.gov",
 				},
 			},
@@ -32,7 +32,7 @@ func Test_Homepage(t *testing.T) {
 		{
 			name: "from npm",
 			input: pkg.Package{
-				Metadata: pkg.NpmPackageJSONMetadata{
+				Metadata: pkg.NpmPackage{
 					Homepage: "http://a-place.gov",
 				},
 			},
@@ -42,7 +42,7 @@ func Test_Homepage(t *testing.T) {
 			// note: since this is an optional field, no value is preferred over NONE or NOASSERTION
 			name: "empty",
 			input: pkg.Package{
-				Metadata: pkg.NpmPackageJSONMetadata{
+				Metadata: pkg.NpmPackage{
 					Homepage: "",
 				},
 			},