🏃🏻‍♂️‍➡️ Add STLInfo struct and loadmesh function for STL file handling

Author: ZenanH

src/STLInfo.jl

@@ -0,0 +1,25 @@
+#==========================================================================================++
+| TABLE OF CONTENTS:                                                                       |
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+| struct list:                                                                             |
+|  - QueryPolygon                                                                          |
++------------------------------------------------------------------------------------------+
+| function list:                                                                           |
+|  - get_polygon (from LibGEOS, need to improve)                                           |
+|  - pip_query                                                                             |
++==========================================================================================#
+
+struct STLInfo
+    mesh::Py
+    vmin::Vector
+    vmax::Vector
+end
+
+function loadmesh(stl_file)
+    isfile(stl_file) || error("stl_file should be a valid file path")
+    mesh = trimesh.load(stl_file, force="mesh")
+    aabb_min, aabb_max = mesh.bounds
+    vmin = pyconvert(Vector, aabb_min)
+    vmax = pyconvert(Vector, aabb_max)
+    return STLInfo(mesh, vmin, vmax) 
+end