[FR] - Create math library and add Floor feature

[acorbin3]

Overview of Feature
Create a math library and add in the floor feature. The floor feature should take in a floating point value and return an integer

Tasks to accomplish - This is a guidance tracking and doesn't not need match up with what is the current state of the feature

• System requirements drafted
• System requirements informal review
• High level requirements drafted
• High level requirements informal review
• Software design drafted
• Software design informal review
• Low level requirements drafted
• Low level requirements informal review
• Software prototyped
• Software informal review
• Test Cases drafted
• Test Cases informal review
• Test procedures drafted
• Test procedures informal review
• Formal review with a pull request