Log Message:
math/qcalc: update to 0.9.0

0.9.0
What's Changed
 - If statements by @OchirErkhembayar in #11
 - Add lists and methods over them, fold, sum, map filter
   by @OchirErkhembayar in #12

0.7.0
What's Changed
 - 1st class citizen functions by @OchirErkhembayar in #9
 - Create booleans and eq and comparisons by @OchirErkhembayar in #10

0.6.2
What's Changed
 - Add integer data type by @OchirErkhembayar in #7
 - Added bitwise operators by @OchirErkhembayar in #8

|-5| == 5 has been changed to abs(-5) == 5
3^2 == 9 has been changed to 3 ** 2 == 9

This is to support the bitwise operators