Crate grafen

Define and construct systems used for molecular simulations.

Modules

coord	Implement elementary coordinate operations.
database	Collect definitions for Residue and SheetConf objects into a DataBase which can be read from or saved to disk.
describe	Describe objects in an informative way.
error	Implements the custom GrafenError class for the library.
iterator	Iterate over atoms in components.
surface	Define and construct 2D surface objects.
system	Contains the basic structures of an atomic system.
volume	Define and construct 3D volume objects.

Macros

create_entry_wrapper	Macro to wrap every object constructor into an enum with desired traits.
impl_component	Macro to implement Component for an object.
impl_translate	Macro to implement Translate for an object with an origin variable.
resbase	Construct a Residue with a code and atoms.