Issue #3192431: Drupal 9 module skeleton

INSTALL.txt

-/**
- * @file
- * INSTALL file Telegram module.
- */
- 
-These are the building and installation instrucions for Linux. If you use some other system
-consider first upgrading to Linux ;-)
-
-(Feedback for other systems will be welcomed and added here)
-
-0. All paths here are just an example but they can be configured visting the module settings
-   at Configuration > Telegram > Settings
- 
-1. Download and Compile Telegram messenger CLI
-   Download from https://github.com/vysheng/tg
-   Follow instructions on that page.
- 
-2. Move executable and key file to a location where the web server can access and run it.
-   Default locations are:
-   /usr/local/bin/telegram
-   /etc/telegram/server.pub.
-   
-3. Create configuration for your phone number. When first run from the console it will ask
-   you for the phone number, confirmation message, etc...
-   These configuration files are stored in a .telegram folder in your home folder
-   In my case: /home/jose/.telegram
- 
-4. Create configuration file and place it in /etc/telegram/telegram.conf
-   Thet contents of the file are something like:
-
-   # Telegram config file
-   log_level = 0;
-   msg_num = 1;
-   config_directory = "/home/telegram";
-   
-5. Copy all the files from the user's configuration folder (/home/jose/.telegram) to the
-   configuration directory the web server will use.
-   Make sure all the files are readable and writable by the web server user (www-data).
-   
-   It looks like this in my box:
-    
-   jose@localbox:/home/telegram$ ls -l
-   
-   -rw-rwx--- 1 jose www-data 1545 Mar  1 12:12 auth
-   -rw-rwx--- 1 jose www-data   65 Feb 28 15:41 config
-   drwxrwx--- 2 jose www-data 4096 Feb 28 15:41 downloads
-   -rw-rwx--- 1 jose www-data    0 Feb 28 15:45 secret
-   -rw-rwx--- 1 jose www-data   24 Mar  1 12:02 state
- 
- 6. Enable the module and set the paths the web server will use. 
-    Visit: Configuration > Telegram > Settings
-    
-    Example:
-    - Executable command: /usr/local/bin/telegram
-    - Key file path: /etc/telegram/server.pub
-    - Configuration file path: /etc/telegram/telegram.conf
-    - Command cwd path: /home/telegram
-   
- 7. In Drupal, Go to Configuration > Telegram
- 
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+TBD
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