epm: add eget backend support

bin/epm-sh-functions

@@ -517,7 +517,7 @@ eget()
 	local EGET
 	# use internal eget only if exists
 	if [ -s $SHAREDIR/tools_eget ] ; then
-		$SHAREDIR/tools_eget "$@"
+		( EGET_BACKEND=$eget_backend $SHAREDIR/tools_eget "$@" )
 		return
 	fi
 	fatal "Internal error: missed tools_eget"

etc/eepm.conf

@@ -28,5 +28,9 @@
 #full_upgrade_no_snap=1
 #full_upgrade_no_kernel_update=1
 
+# autodetect by default
+#eget_backend=curl
+#eget_backend=wget
+
 # own path for eget ipfs database
 #eget_ipfs_db=/var/lib/eepm/eget-ipfs-db.txt