rename database > data_product

[majidaldo]

not a 'bug' but the python api refers to a 'database' while the terminusdb docs talk about a 'data product'.

[alexander-mart]

Mentions of database:

• https://github.com/search?q=repo%3Aterminusdb%2Fterminusdb-client-python%20database&type=code

[alexander-mart]

Related issues:

• Remove "account" "organization" confusion. TerminusDB uses "organization" #319