feat: add icons for FreeCAD files

- Add icon for several FreeCAD file extensions. General-purpose parametric 3D computer-aided design (CAD) modeler.
  - `.fcstd` FreeCAD native format.
  - `.fcmacro` FreeCAD macro (Python code).
  - `.fcmat` FreeCAD material card.
  - `.fcparam` FreeCAD parameter file.
  - `.fcscript` FreeCAD script (Python code).
  - `.fctb` Path tool bit file (JSON format).
  - `.fctl` Path tool library file (JSON format).
  - `.fcbak` FreeCAD Backup file.
  - `.fcstd1` FreeCAD Backup file.
  - `FreeCAD.conf` Configuration file.

Author: hasecilu

lua/nvim-web-devicons/icons-default.lua

@@ -1202,6 +1202,60 @@ local icons_by_file_extension = {
     cterm_color = "102",
     name = "3DObjectFile",
   },
+  ["fcbak"] = {
+    icon = "",
+    color = "#cb0d0d",
+    cterm_color = "160",
+    name = "FreeCAD",
+  },
+  ["fcmacro"] = {
+    icon = "",
+    color = "#cb0d0d",
+    cterm_color = "160",
+    name = "FreeCAD",
+  },
+  ["fcmat"] = {
+    icon = "",
+    color = "#cb0d0d",
+    cterm_color = "160",
+    name = "FreeCAD",
+  },
+  ["fcparam"] = {
+    icon = "",
+    color = "#cb0d0d",
+    cterm_color = "160",
+    name = "FreeCAD",
+  },
+  ["fcscript"] = {
+    icon = "",
+    color = "#cb0d0d",
+    cterm_color = "160",
+    name = "FreeCAD",
+  },
+  ["fcstd"] = {
+    icon = "",
+    color = "#cb0d0d",
+    cterm_color = "160",
+    name = "FreeCAD",
+  },
+  ["fcstd1"] = {
+    icon = "",
+    color = "#cb0d0d",
+    cterm_color = "160",
+    name = "FreeCAD",
+  },
+  ["fctb"] = {
+    icon = "",
+    color = "#cb0d0d",
+    cterm_color = "160",
+    name = "FreeCAD",
+  },
+  ["fctl"] = {
+    icon = "",
+    color = "#cb0d0d",
+    cterm_color = "160",
+    name = "FreeCAD",
+  },
   ["flac"] = {
     icon = "",
     color = "#66D8EF",

lua/nvim-web-devicons/icons-light.lua

@@ -1202,6 +1202,60 @@ local icons_by_file_extension = {
     cterm_color = "240",
     name = "3DObjectFile",
   },
+  ["fcbak"] = {
+    icon = "",
+    color = "#cb0d0d",
+    cterm_color = "160",
+    name = "FreeCAD",
+  },
+  ["fcmacro"] = {
+    icon = "",
+    color = "#cb0d0d",
+    cterm_color = "160",
+    name = "FreeCAD",
+  },
+  ["fcmat"] = {
+    icon = "",
+    color = "#cb0d0d",
+    cterm_color = "160",
+    name = "FreeCAD",
+  },
+  ["fcparam"] = {
+    icon = "",
+    color = "#cb0d0d",
+    cterm_color = "160",
+    name = "FreeCAD",
+  },
+  ["fcscript"] = {
+    icon = "",
+    color = "#cb0d0d",
+    cterm_color = "160",
+    name = "FreeCAD",
+  },
+  ["fcstd"] = {
+    icon = "",
+    color = "#cb0d0d",
+    cterm_color = "160",
+    name = "FreeCAD",
+  },
+  ["fcstd1"] = {
+    icon = "",
+    color = "#cb0d0d",
+    cterm_color = "160",
+    name = "FreeCAD",
+  },
+  ["fctb"] = {
+    icon = "",
+    color = "#cb0d0d",
+    cterm_color = "160",
+    name = "FreeCAD",
+  },
+  ["fctl"] = {
+    icon = "",
+    color = "#cb0d0d",
+    cterm_color = "160",
+    name = "FreeCAD",
+  },
   ["flac"] = {
     icon = "",
     color = "#336c78",