Initial commit. Create first test for Tenant class and code to bring up first error.
Create initialize to meet test perameters
Create test for credit rating. Write most basic code possible to pass test
Clean up code to account for credit rating based on various credit scores
Create test for flat class, initialize and arguments plus code to pass test
Create test for adding tenants with corresponding code to pass test
Create test for not adding tenant due to low credit score and corresponding code to do so
Generate test to remove a tenant from flat and code to pass test perameters
Create test for clearing tenants plus method to do so
Create calculation to find the mean credit score of all tenants in apartment
Test to determine total credit rating and method to calculate it