Add SQL script to fix issue 1

Reference:
https://github.com/medea-project/ipcc-database/issues/1
Add SQL script to fix issue #3

Reference:
https://github.com/medea-project/ipcc-database/issues/3
Add SQL script to fix issue #5

Reference:
https://github.com/medea-project/ipcc-database/issues/5
Add SQL script to fix issue #7

Reference:
https://github.com/medea-project/ipcc-database/issues/7
Add SQL script to fix issue #11

Reference:
https://github.com/medea-project/ipcc-database/issues/11
Fix patch for issue #5: positions start at 1 for SUBSTR()
Add patch to remove space character at start of institution names

Fixes issue #5 (again).

Reference:
https://github.com/medea-project/ipcc-database/issues/5
Add SQL script to fix issue #4

Reference:
https://github.com/medea-project/ipcc-database/issues/4
Move patches to a separate folder
Import patches from private project 'mysql'
Add CC-BY license copied from legalcode repository

Repository:
https://github.com/creativecommons/legalcode
Rename license file to clarify