feat: Add Wordpress cataloger (#2218)

* Closes #1911 Wordpress cataloger

Signed-off-by: disc <a.hacicheant@gmail.com>

* Fixed a few unit tests and static analizer notices

Signed-off-by: disc <a.hacicheant@gmail.com>

* Updated `README.md`

Signed-off-by: disc <a.hacicheant@gmail.com>

* Fixed `golangci-lint` notices
Added integration test for `wordpress-plugin`

Signed-off-by: disc <a.hacicheant@gmail.com>

* Fixed `gosimports` notices

Signed-off-by: disc <a.hacicheant@gmail.com>

* Updated `json schema` version

Signed-off-by: disc <a.hacicheant@gmail.com>

* Fixed CLI tests, increased expected package count

Signed-off-by: disc <a.hacicheant@gmail.com>

* Read first 4Kb of a plugins file's content

Signed-off-by: disc <a.hacicheant@gmail.com>

* replace JSON schema version

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

* change wording on source info for wordpress packages

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

* Minor changes after a huge refactoring

Signed-off-by: disc <a.hacicheant@gmail.com>

* Removed unused files

Signed-off-by: disc <a.hacicheant@gmail.com>

* Updated schema

Signed-off-by: disc <a.hacicheant@gmail.com>

* Fixed integration tests

Signed-off-by: disc <a.hacicheant@gmail.com>

* fix integration tests

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

* Renamed `metadata.Name` to `metadata.PluginInstallDirectory`

Signed-off-by: disc <a.hacicheant@gmail.com>

* rename fields to be compliant with json conventions

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

---------

Signed-off-by: disc <a.hacicheant@gmail.com>
Signed-off-by: Alex Goodman <wagoodman@users.noreply.github.com>
Co-authored-by: Alex Goodman <wagoodman@users.noreply.github.com>

schema/json/schema-16.0.2.json

@@ -2242,6 +2242,12 @@
       },
       "type": "array"
     },
+    "cpes": {
+      "items": {
+        "$ref": "#/$defs/CPE"
+      },
+      "type": "array"
+    },
     "licenses": {
       "items": {
         "$ref": "#/$defs/License"

schema/json/schema-latest.json

@@ -1,6 +1,6 @@
 {
   "$schema": "https://json-schema.org/draft/2020-12/schema",
-  "$id": "anchore.io/schema/syft/json/16.0.3/document",
+  "$id": "anchore.io/schema/syft/json/16.0.4/document",
   "$ref": "#/$defs/Document",
   "$defs": {
     "AlpmDbEntry": {
@@ -1493,6 +1493,9 @@
             },
             {
               "$ref": "#/$defs/SwiftPackageManagerLockEntry"
+            },
+            {
+              "$ref": "#/$defs/WordpressPluginEntry"
             }
           ]
         }
@@ -2268,6 +2271,23 @@
         "revision"
       ]
     },
+    "WordpressPluginEntry": {
+      "properties": {
+        "pluginInstallDirectory": {
+          "type": "string"
+        },
+        "author": {
+          "type": "string"
+        },
+        "authorUri": {
+          "type": "string"
+        }
+      },
+      "type": "object",
+      "required": [
+        "pluginInstallDirectory"
+      ]
+    },
     "cpes": {
       "items": {
         "$ref": "#/$defs/CPE"