beremiz

Fix wrong ST code generation in case of several coils connected to each other.


For example,
|---|Var0|----(Var1)--(Var2)---|

Closes #32
<?xml version='1.0' encoding='utf-8'?>
<BeremizRoot URI_location="LOCAL://">
<TargetType/>
<Libraries Enable_Python_Library="true"/>
</BeremizRoot>