fixed import error by adapting setup py

measprocess/rtr/__init__.py

-from .process import (
-    process,
-    interpolate_signal_loc
-)

setup.py

@@ -23,7 +23,12 @@ setup(
     classifiers=[
         "Programming Language :: Python :: 3.8",
     ],
-    packages=["measprocess"],
+    packages=[
+        "measprocess",
+        "measprocess.geospatial",
+        "measprocess.nemo",
+        "measprocess.rtr"
+    ],
     include_package_data=True,
     install_requires=["pandas", "matplotlib", "geopandas", "overpy", "shapely", "numpy", "tqdm", "cartopy", "aiohttp", "multidict", "requests"],
 )