build: rename to gbili/php-exception

.gitignore

@@ -0,0 +1 @@
+vendor/

composer.json

@@ -1,5 +1,5 @@
 {
-    "name": "gbili/exception",
+    "name": "gbili/php-exception",
     "description": "Provides basic exception classes",
     "authors" : [
         {
@@ -24,6 +24,6 @@
         "php": ">=5.3.3"
     },
     "require-dev": {
-        "phpunit/phpunit": "^6"
+        "phpunit/phpunit": "^8.2"
     }
 }