add namespaces and cmakelists for sub-dirs

src/motions/CMakeLists.txt

@@ -0,0 +1,23 @@
+# Create a library target for motions
+add_library(
+        RWMotion STATIC
+        conewobble.cpp
+        conewobble.h
+        coordinates.cpp
+        coordinates.h
+        base.cpp
+        base.h
+        random.cpp
+        random.h
+        isosmallangle.cpp
+        isosmallangle.h
+        foursitejump.cpp
+        foursitejump.h
+        rjoac.cpp
+        rjoac.h
+        bimodalangle.cpp
+        bimodalangle.h
+        sixsitejump.cpp
+        sixsitejump.h
+)
+