Float APIs - Part1

[st0012]

This PR is for continuing the work at #615 (thanks @SD10 for previous works)

It implements:

• Float#abs Return positive number of the float. "Formally as the distance between 0 to the number of the float in 1-dimensional axis ..."

• Float#ceil Returns the smallest number greater than or equal to the receiver

• Float#floor Returns the largest number smaller than or equal to the receiver

• Float#round Rounds float to a given precision in decimal digits (default 0 digits). Precision may be negative. Returns a floating-point number when n digits are more than zero.

• Float#positive? Returns true if float number is larger than 0.0

• Float#negative? Returns true if float number is less than 0.0

• Float#zero? Returns true if float number is equal to 0.0

[codecov]

Codecov Report

Merging #664 into master will decrease coverage by 0.10%.
The diff coverage is 64.00%.

@@            Coverage Diff             @@
##           master     #664      +/-   ##
==========================================
- Coverage   81.11%   81.01%   -0.11%     
==========================================
  Files          54       54              
  Lines        7419     7468      +49     
==========================================
+ Hits         6018     6050      +32     
- Misses       1178     1186       +8     
- Partials      223      232       +9     

Impacted Files	Coverage Δ
vm/float.go	76.66% <64.00%> (-4.25%)	⬇️

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[SD10]

🎉 Stay safe and healthy my friends