feat(cli): adding terminal command scrapling install

Instead of making users install browsers by themself

scrapling/cli.py

@@ -0,0 +1,37 @@
+import os
+import subprocess
+import sys
+from pathlib import Path
+
+import click
+
+
+def get_package_dir():
+    return Path(os.path.dirname(__file__))
+
+
+def run_command(command, line):
+    print(f"Installing {line}...")
+    _ = subprocess.check_call(command, shell=True)
+    # I meant to not use try except here
+
+
+@click.command(help="Install all Scrapling's Fetchers dependencies")
+def install():
+    if not get_package_dir().joinpath(".scrapling_dependencies_installed").exists():
+        run_command([sys.executable, "-m", "playwright", "install", 'chromium'], 'Playwright browsers')
+        run_command([sys.executable, "-m", "playwright", "install-deps", 'chromium', 'firefox'], 'Playwright dependencies')
+        run_command([sys.executable, "-m", "camoufox", "fetch", '--browserforge'], 'Camoufox browser and databases')
+        # if no errors raised by above commands, then we add below file
+        get_package_dir().joinpath(".scrapling_dependencies_installed").touch()
+    else:
+        print('The dependencies are already installed')
+
+
+@click.group()
+def main():
+    pass
+
+
+# Adding commands
+main.add_command(install)