Fix CI testing (#2)

* try auto update conda

* auto activate base

* try giving miniconda version

* get rid of channels

* try updating everything and moving channels into yaml

* does adding .fixed_node fix this?

* try now without auto update/activate

* try new approx()

* add abs tols for approx

* try dtype=object

* typo

* make abs tol match precision of expected value

* try legacy h5 load for keras model

* fix import

* try other import

* custom object directly

Add in excited state guided DMC functionality

Allowed restarts with importance sampling to work. Debugged some of t…

…he fixed node functionality

Default for fixed node

Added fixed node

Add in alternative impsamp disps for jacob

Continuous weights can be added into initial structures

Add in timestep monitoring for trial wfn for fixed node calculations

imp samp cont weighting bug fix, now only calc drift twice at first t…

…ime step.

Update tests for returning angstroms in analysis code