FEATURE: Add the configuration for git hooks

Implementation of the basic configuration for the Python based multi-language supporting git hooks manager 'pre-commit' (https://pre-commit.com, https://github.com/pre-commit/pre-commit) by using hooks (actions, rules) from the common repository 'https://github.com/pre-commit/pre-commit-hooks' maintained by the very same organization.

This will make sure that the most common and generic programming mistakes and formatting issues will no longer be present in the Machinekit-HAL repository (but it is still a bit Python centric).

The Lefthook configuration file which was added by mistake as part of CMake rework was removed as it will not be used.

.pre-commit-config.yaml

@@ -0,0 +1,59 @@
+# ####################################################################
+# Description:  .pre-commit-config.yaml
+#
+#               This file, '.pre-commit-config.yaml', implements
+#               the configuration rules for the Pre-Commit git hook manager
+#               for Machinekit-HAL project
+#
+# Copyright (C) 2022    Jakub Fišer  <jakub DOT fiser AT eryaf DOT com>
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+#
+# #####################################################################
+
+exclude: ^attic/.*
+default_stages:
+  - commit
+  - push
+repos:
+  - repo: 'https://github.com/pre-commit/pre-commit-hooks'
+    rev: v4.1.0
+    hooks:
+      - id: check-added-large-files
+      - id: check-ast
+      - id: check-case-conflict
+      - id: check-executables-have-shebangs
+      - id: check-json
+      - id: check-merge-conflict
+      - id: check-shebang-scripts-are-executable
+      - id: check-symlinks
+      - id: check-toml
+      - id: check-vcs-permalinks
+      - id: check-xml
+      - id: check-yaml
+        args:
+          - '--allow-multiple-documents'
+      - id: destroyed-symlinks
+      - id: end-of-file-fixer
+      - id: fix-byte-order-marker
+      - id: fix-encoding-pragma
+        args:
+          - '--remove'
+      - id: forbid-new-submodules
+      - id: no-commit-to-branch
+        args:
+          - '--branch'
+          - 'master'
+      - id: trailing-whitespace