cleanup
Implemented the KCL verification in place of the classical SPICE3 check for the circuit currents
This version modifies every model directly to obtain fvk in a separate vector, instead of using a matrix-vector product
Added support for "new_kirchoff" for CAP, ISRC devices
Added support for "new_kirchoff" for IND, RES, VSRC devices
Reviewed IND, ISRC, RES and VSRC to work with the "new_kirchhoff" KCL verification
Added support for "new_kirchhoff" for CCCS, CCVS, VCCS and VCVS devices
Added MOS1 to the "new_kirchhoff" KCL verification
Added BSIM2 to the "new_kirchhoff" KCL verification
Added MOS6 to the "new_kirchhoff" KCL verification
Added BSIM3 to the "new_kirchhoff" KCL verification
Added examples for the KCL verification
Added a preliminary version of the BSIM4v7 model for the KCL verification
Speeded up the KCL Verification Method, performing the KCL Check only after that the Voltage Check result is good