Feat(Docker/bash): docker-compose system rework (#4488)

## ⚠️ATTENTION! ⚠️ Upgrading procedure:

**Database:** After this PR will be merged you need to backup your DB first (you can use the db-assembler or any mysql client to generate the dump) and restore it after.  The reason is that we use now docker named volumes instead of binded ones to improve performance.

**Conf & client data**: if you use the default configuration, both the etc and the data folder are now available inside the **/env/docker**. 

Finally, you can cleanup the /docker folder previously used by our system.

## Changes Proposed:

This PR will implement the [devcontainer ](https://code.visualstudio.com/docs/remote/containers) feature for VSCode. Allowing us to develop and debug directly within the container in the same way on all OSes.

* Implemented support for vscode dev-container feature by remote-extension suite
* Docker performance optimizations for MacOS and non-linux hosts
* Bash system improvements
* Implemented first command using Deno runtime environment (typescript) and [commander.js]
* Implemented wait mechanism for db_assembler
* Implemented db migration command
* possibility to run the authserver and worldserver with GDB using the integrated simple-restarter
* Implemented docker multi-stage mechanism to use one single Dockerfile for all the services
* client-data downloader now creates a placeholder to avoid downloading the same version of data files multiple times
* deployment of pre-compiled docker images on [docker hub](https://hub.docker.com/u/acore), you can test them [here](https://github.com/azerothcore/acore-docker)

apps/db_assembler/includes/functions.sh

@@ -2,6 +2,21 @@
 PROMPT_USER=""
 PROMPT_PASS=""
 
+function dbasm_waitMysqlConn() {
+    DBHOST="$1"
+    DBPORT="$2"
+    COUNT=0
+    while ! mysqladmin ping -h"$DBHOST" --port="$DBPORT" --silent; do
+        ((COUNT++))
+        if [ $COUNT -gt $DBASM_WAIT_RETRIES ]; then
+            echo "DBASM Timeout: Cannot ping mysql!" 1>&2
+            exit 64
+        fi
+        echo "Cannot ping mysql, retry in $DBASM_WAIT_TIMEOUT seconds (remaining: $COUNT/$DBASM_WAIT_RETRIES)..."
+        sleep $DBASM_WAIT_TIMEOUT
+    done
+}
+
 # use in a subshell
 function dbasm_resetExitCode() {
 	exit 0
@@ -11,7 +26,7 @@ function dbasm_mysqlExec() {
 	confs=$1
 	command=$2
 	options=$3
-	
+
     # MYSQL_PORT needs to be reseted as the next eval might not overwite the current value causing the commands to use wrong port
     MYSQL_PORT=3306
 	eval $confs
@@ -21,6 +36,7 @@ function dbasm_mysqlExec() {
 		MYSQL_PASS=$PROMPT_PASS
 	fi
 
+    dbasm_waitMysqlConn $MYSQL_HOST $MYSQL_PORT
 
 	export MYSQL_PWD=$MYSQL_PASS
 
@@ -57,7 +73,7 @@ function dbasm_mysqlExec() {
 
                 eval $_confs
                 echo "Grant permissions for ${MYSQL_USER}'@'${MYSQL_HOST} to ${_dbname}"
-                "$DB_MYSQL_EXEC"  -h "$MYSQL_HOST" -u "$PROMPT_USER" $options -P "$MYSQL_PORT" -e "GRANT ALL PRIVILEGES ON ${_dbname}.* TO '${MYSQL_USER}'@'${MYSQL_HOST}'  WITH GRANT OPTION;"
+                "$DB_MYSQL_EXEC"  -h "$MYSQL_HOST" -u "$PROMPT_USER" $options -P "$MYSQL_PORT" -e "GRANT ALL PRIVILEGES ON ${_dbname}.* TO '${MYSQL_USER}'@'${MYSQL_HOST}'  WITH GRANT OPTION; FLUSH PRIVILEGES;"
             done
 		else
 			exit
@@ -109,9 +125,13 @@ function dbasm_createDB() {
         echo "$dbname database exists"
     else
 		echo "Creating DB ${dbname} ..."
-        dbasm_mysqlExec "$confs" "CREATE DATABASE \`${dbname}\`" ""
+        dbasm_mysqlExec "$confs" "CREATE DATABASE \`${dbname}\`;" ""
+        echo "Creating User ${CONF_USER}@${MYSQL_HOST} identified by ${CONF_PASS}..."
         dbasm_mysqlExec "$confs" "CREATE USER IF NOT EXISTS '${CONF_USER}'@'${MYSQL_HOST}' IDENTIFIED BY '${CONF_PASS}';"
-        dbasm_mysqlExec "$confs" "GRANT ALL PRIVILEGES ON \`${dbname}\`.* TO '${CONF_USER}'@'${MYSQL_HOST}' WITH GRANT OPTION;"
+        echo "Granting user privileges on: ${dbname} ..."
+        dbasm_mysqlExec "$confs" "GRANT ALL PRIVILEGES ON \`${dbname}\`.* TO '${CONF_USER}'@'${MYSQL_HOST}'"
+        echo "Flush privileges"
+        dbasm_mysqlExec "$confs" "FLUSH PRIVILEGES;"
     fi
 }
 
@@ -247,7 +267,7 @@ function dbasm_db_backup() {
 
     name="DB_"$uc"_NAME"
     dbname=${!name}
-	
+
     # MYSQL_PORT needs to be reseted as the next eval might not overwite the current value causing the commands to use wrong port
     MYSQL_PORT=3306
     eval $confs;
@@ -299,7 +319,7 @@ function dbasm_db_import() {
     fi
 
     echo "importing $1 - $2 ..."
-    
+
     # MYSQL_PORT needs to be reseted as the next eval might not overwite the current value causing the commands to use wrong port
     MYSQL_PORT=3306
     eval $confs;
@@ -309,6 +329,8 @@ function dbasm_db_import() {
 		MYSQL_PASS=$PROMPT_PASS
 	fi
 
+    dbasm_waitMysqlConn $MYSQL_HOST $MYSQL_PORT
+
     export MYSQL_PWD=$MYSQL_PASS