pyproject: add dependencies

Author: FabriceSalvaire

pyproject.toml

@@ -10,10 +10,12 @@ version = "1.6"
 
 dependencies = [
   "PyYAML>=6.0.3",
+  "bs4>=0.0.2",
   "cffi>=2.1.1",
   "colorama>=0.4.6",  # pyspice_post_installation.py
   "matplotlib>=3.11.1",
   "numpy>=2.5.2",
+  "pint>=0.25.3",
   "ply>=3.11",  # PySpice/Spice/Parser/Parser.py
   "requests>=2.34.2", # pyspice_post_installation.py
   "scipy>=1.18.1",
@@ -53,6 +55,7 @@ Source = "https://github.com/FabriceSalvaire/PySpice"
 dev = [
   "hatchling>=1.32.0",
   "invoke>=3.0.3",
+  "ipython>=9.17.1",
   "rassumfrassum>=0.3.4",
   "ruff>=0.16.5",
   "sexpdata>=1.0.2",  # Fixme: required by kicadrw