Include phpstan.extension.neon in exports, autoload PHPStan classes

Author: lkrms

.gitattributes

@@ -10,6 +10,7 @@
 /phpstan* export-ignore
 /phpstan-baseline-7.4.neon linguist-generated
 /phpstan-baseline-8.3.neon linguist-generated
+/phpstan.extension.neon -export-ignore
 /phpunit* export-ignore
 /scripts export-ignore
 /src/Toolkit/Cli/CliOptionBuilder.php linguist-generated

composer.json

@@ -52,7 +52,8 @@
     },
     "autoload": {
         "psr-4": {
-            "Salient\\": "src/Toolkit/"
+            "Salient\\": "src/Toolkit/",
+            "Salient\\PHPStan\\": "src/PHPStan/"
         },
         "classmap": [
             "stubs/"
@@ -64,7 +65,6 @@
     "autoload-dev": {
         "psr-4": {
             "Salient\\Sli\\": "src/Sli/",
-            "Salient\\PHPStan\\": "src/PHPStan/",
             "Salient\\Tests\\PHPStan\\": "tests/unit/PHPStan/",
             "Salient\\Tests\\": [
                 "tests/unit/Toolkit/",