chore: new flags for inductances evaluation

Two new flags were added:
    * SELF_INDUCTANCE_MODE_0 = 0 is used to assign a constant value for
    the self inductance readed from input file conductor_definition.xlsx
    * CONSTANT_INDUCTANCE = 0 is used to assign a constant value for the
    mutual inductance readed from input file conductor_definition.xlsx

The flags related to mutual inductance were redefined as:
    * ANALYTICAL_INDUCTANCE = 1 Flag to evaluate inductance analytically
    * APPROXIMATE_INDUCTANCE = 2 Flag to evaluate inductance using an approximation

modified:   conductor_flags.py

Author: Mortara Alessandro

source_code/conductor_flags.py

@@ -16,15 +16,19 @@
 # Electric conductance is not defined per unit length
 ELECTRIC_CONDUCTANCE_NOT_UNIT_LENGTH = 2
 
+# Self inductance readed from input file conductor_definition.xlsx
+SELF_INDUCTANCE_MODE_0 = 0
 # Analytical self inductance is evaluated according to mode 1.
 SELF_INDUCTANCE_MODE_1 = 1
 # Analytical self inductance is evaluated according to mode 2.
 SELF_INDUCTANCE_MODE_2 = 2
 
+# Constant mutual inductance readed from input file conductor_definition.xlsx
+CONSTANT_INDUCTANCE = 0
 # Flag to evaluate inductance analytically
-ANALYTICAL_INDUCTANCE = 0
+ANALYTICAL_INDUCTANCE = 1
 # Flag to evaluate inductance using an approximation
-APPROXIMATE_INDUCTANCE = 1
+APPROXIMATE_INDUCTANCE = 2
 
 # Flag to solve the electric problem in steady state conditions.
 STATIC_ELECTRIC_SOLVER = 0