feat: added additional precommit checks

* check-byte-order-marker
* conventional-pre-commit

.ecrc

@@ -0,0 +1,4 @@
+{
+    "IgnoreDefaults": false,
+    "Exclude": ["^LICENSE$", "^LICENSES/.*"]
+}

.ecrc.license

@@ -0,0 +1,3 @@
+SPDX-FileCopyrightText: 2023 Tobias Schmidl
+
+SPDX-License-Identifier: AGPL-3.0-or-later

.pre-commit-config.yaml

@@ -11,6 +11,7 @@ repos:
   - id: end-of-file-fixer
   - id: trailing-whitespace
   - id: check-merge-conflict
+  - id: check-byte-order-marker
 - repo: https://github.com/fsfe/reuse-tool
   rev: v2.1.0
   hooks:
@@ -20,4 +21,10 @@ repos:
   hooks:
   - id: editorconfig-checker
     alias: ec
+    stages: [commit]
+- repo: https://github.com/compilerla/conventional-pre-commit
+  rev: v2.4.0
+  hooks:
+  - id: conventional-pre-commit
+    stages: [commit-msg]
 ...