Make template separator character user-configurable

src/wireviz/DataClasses.py

@@ -59,6 +59,7 @@ class Options:
     bgcolor_bundle: Optional[Color] = None
     color_mode: ColorMode = "SHORT"
     mini_bom_mode: bool = True
+    template_separator: str = "."
 
     def __post_init__(self):
         if not self.bgcolor_node:

src/wireviz/wireviz.py

@@ -153,7 +153,7 @@ def parse(
 
     # go through connection sets, generate and connect components ==============
 
-    template_separator_char = "."  # TODO: make user-configurable (in case user wants to use `.` as part of their template/component names)
+    template_separator_char = harness.options.template_separator
 
     def resolve_designator(inp, separator):
         if separator in inp:  # generate a new instance of an item