paddl: Parse Any DDL

Parse DDLs into objects using python.

Ambitious title, supported SQL languages include:

• Rudamentary CREATE TABLE implemented, pursuing MySQL 8 first.

from paddl import parse, ColType

schema = parse("CREATE TABLE employees (id int, name varchar(255));", 'mysql')
table = schema.tables[0]

table.name 
# "employees"

table.columns

column = table.columns[0]
column.name == 'id'
column.type == ColType.INT