randomforest algorithm

[ct-clmsn]

Provide an implementation of Random Forest algorithm

• NumPy implementation
• Phylanx implementation
• C++ primitive

[ct-clmsn]

track branch 'randomforest' in pr #654 for ticket

[ct-clmsn]

code includes the following function from numpy (checked ones are available in Phylanx):

• floor
• argsort
• sum
• sqrt
• float64
• int64
• zeros
• argmax
• inf
• genfromtxt
• vstack
• iinfo
• finfo
• unique

also include from numpy.random:

• randint
• rand

[ct-clmsn]

@hkaiser a version of argsort is implemented in the cpp code.

[ct-clmsn]

see #677

[tapaswenipathak]

Hi ct-clmsn: Can I PR or are you implementing the remaining task list?