supply a general coordinate transformation for stesses from local to
global and strains from global to local; returned matrices correspond to
the MAPLE sheets derivation "Trans_strain_from_loc_to_glb" and
"Trans_strain_from_glb_to_loc" (with corrected order of matrix
multiplication);
remove old MAPLE sheets as the order of the matrix multiplcation is
false (switched for both cases)
import transformation matrices from file "coordinate_transfromation.py"
instead of local methods
redefined transformation matrices as local methods but with corrected
values (new MPALE sheets); correspods to old implementation structure;
corrected coordinate transformation methods for fets2D5 element
formulations using the corrected maple sheet derivations