Manim-chemistry

New Features
* Added GenericElement class that will be the base for future developments. [1668d67](https://github.com/UnMolDeQuimica/manim-Chemistry/commit/1668d670752c86b860ff20c2d9e58ba4286329e1)
* Added GraphMolecule. This class is based on Manim's Graph class and gives simple yet beautiful molecules based. [1668d67](https://github.com/UnMolDeQuimica/manim-Chemistry/commit/1668d670752c86b860ff20c2d9e58ba4286329e1)

New Features
* Added basic support for chemical formulas. [fcc7110](https://github.com/UnMolDeQuimica/manim-Chemistry/commit/3948d73ff052ad3051b432dd17f9d4e5077e3892)

New Features
* Created class NamedMolecule. [3948d73](https://github.com/UnMolDeQuimica/manim-Chemistry/commit/3948d73ff052ad3051b432dd17f9d4e5077e3892)

Bugfixes
* Fixed implicit hydrogen missing bonds. [a66062c](https://github.com/UnMolDeQuimica/manim-Chemistry/commit/a66062cb374b3c2dbb4e9abac11359e6a784db69)

Code improvements
* Improved rotate bond function. [fa0ca46](https://github.com/UnMolDeQuimica/manim-Chemistry/commit/fa0ca46d28f1e505b0c40225912da2a6bc50383a)

Auxiliary Files improvements

* Added English version of Elements.csv file. [da7438b](https://github.com/UnMolDeQuimica/manim-Chemistry/commit/da7438b724f4fc149a5be83f0f0dbdc3e64d42d8)


Documentation improvement
* Fixed typo in add_bonds_numbering example.
* Added NamedMolecule example.

* Creation of the project