old/physics: Remove abstract base classes
-rw-r--r-- 0 .gitignore
drwxr-xr-x - 3rdparty
-rw-r--r-- 135 Config.mk
-rw-r--r-- 3423 Rules.mk
drwxr-xr-x - data
drwxr-xr-x - docs
drwxr-xr-x - include
drwxr-xr-x - old
drwxr-xr-x - source