Did them one after another, adding both here now

SIS updated to use scores to check similarity and only send phi's that are needed

For the distribution minor bug led to hangs

it should not always be true

all lower rungs stored on processes, this was causing issues with set_value if not done this way

Node and OperatorNode get virtual destructors

More complincated tests are needed

phi stored across all nodes not stored on all nodes

Possible to resize based off of rung

Initial commit towards resizing temporary storage arrays

Checks for cancelations and duplicate features

Removed _value_ptr and _feat_value_ptrs from OperatorNode
Allow set_value() and get_value_ptr() to accept offest and work directly on offset
value_ptr only thing to call set_value

Added type condition tests (initial simplification)
Added som more documenatation

Documentation added to feature space and base node operators

don't need to set things as often

check for cross correlation in the stored rungs

Features now point to a position in centeral arrays.

Recurisive solutions for all rungs above 2

Feature Creation, projection scores, and l0 normalization all parallelized

Node and Unit need to be serialized

Start parallelzationo

Refactored C++ SISSO code now running properly.

Further tests are needed to further debug, need to work on memory access and bringing in new features