fix(load): add support for factory-callback parser presets (#834)

* refactor(load): remove custom parser preset factory code

* test(load): add tests with all types of conventional presets

* fix(load): add support for factory-callback parser presets

Author: byCedric

@commitlint/load/fixtures/parser-preset-angular/commitlint.config.js

@@ -0,0 +1,3 @@
+module.exports = {
+	parserPreset: 'conventional-changelog-angular'
+};

@commitlint/load/fixtures/parser-preset-angular/package.json

@@ -0,0 +1,7 @@
+{
+    "name": "parser-preset-angular",
+    "version": "1.0.0",
+    "devDependencies": {
+        "conventional-changelog-angular": "5.0.5"
+    }
+}

@commitlint/load/fixtures/parser-preset-conventionalcommits/commitlint.config.js

@@ -0,0 +1,3 @@
+module.exports = {
+	parserPreset: 'conventional-changelog-conventionalcommits'
+};

@commitlint/load/fixtures/parser-preset-conventionalcommits/package.json

@@ -0,0 +1,7 @@
+{
+    "name": "parser-preset-conventionalcommits",
+    "version": "1.0.0",
+    "devDependencies": {
+        "conventional-changelog-conventionalcommits": "4.2.1"
+    }
+}

@commitlint/load/fixtures/parser-preset-factory/commitlint.config.js

@@ -0,0 +1,3 @@
+module.exports = {
+	parserPreset: 'conventional-changelog-atom'
+};

@commitlint/load/fixtures/parser-preset-factory/conventional-changelog-factory.js

@@ -0,0 +1,7 @@
+{
+    "name": "@second-extend/recursive-parser-preset-conventional-atom",
+    "version": "1.0.0",
+    "devDependencies": {
+        "conventional-changelog-atom": "2.0.3"
+    }
+}