Add tables to db_main.sql to install it
Update tables in db_main.sql
Add constants to sequence tables
Add function to verify which lesson are available for the user. -refs #7220
Update tables in db_main.sql
Add sequence.lib.php to interact whit sequence tables  -refs #7220
Update tables and inserts in db_main.sql
Add function to execute formula, need add more functions -refs #7220
Update tables and inserts in db_main.sql
Update function to execute formula
Add more function to sequence class
Add some function called in learnpath files -refs #7220
Complete functions for rule with LP, doesn't work all, but I will fix them -refs #7220
Some fixes, now insert into sequence tables
More Fix
Rule %70 works, I'll test it more and then comment it, the problem was when used Database::array and thought that would return a complete array, but was just a row -refs #7220
Fix course_home student_view, working
Rule 70% Completed for LP