created folder and first version for the install script

scripts/install

@@ -0,0 +1,16 @@
+#!/bin/bash
+
+source /usr/share/yunohost/helpers
+
+#=================================================
+# DOWNLOAD, CHECK AND UNPACK SOURCE
+#=================================================
+ynh_script_progression --message="Setting up source files..." --weight=1
+
+ynh_setup_source --dest_dir="$install_dir"
+
+chown -R $app:www-data "$install_dir"
+chmod -R o-rwx "$install_dir"
+
+
+