Convergence tool

[zingale]

This cleans up the output of the RichardsonConvergence tool. By default, the latex formatting is turned off (you can turn it back on via latex=1. Also, now the column widths all line up and it removes some duplicate header. This makes the output more readable:

Level  L0 norm of Error in Each Component
-----------------------------------------------
level: 0
Warning: BoxArray lengths are not the same at level 0
                 density        2.303884e+02       3.836486   1.612736e+01
                    xmom        6.840777e+10       3.979864   4.335578e+09
                    ymom        6.840777e+10       3.979864   4.335578e+09
                    zmom        0.000000e+00   ------------   0.000000e+00
                   rho_E        2.491525e+19       3.888612   1.682194e+18
                   rho_e        1.989541e+19       3.843530   1.385910e+18
                    Temp        2.636424e+05       3.579066   2.206018e+04
                 rho_He4        2.318394e+02       3.855445   1.601706e+01
                 rho_C12        2.701018e+01       3.555371   2.297492e+00
                 rho_O16        1.219769e-01       3.058968   1.463648e-02
                rho_Fe56        2.303884e-28       3.836486   1.612736e-29
            omegadot_He4        7.012030e-04       3.647774   5.594411e-05
            omegadot_C12        7.010557e-04       3.647708   5.593492e-05
            omegadot_O16        4.809908e-06       3.719771   3.650684e-07
           omegadot_Fe56        0.000000e+00   ------------   0.000000e+00
                    enuc        4.101967e+14       3.647806   3.272601e+13
                rho_enuc        2.431546e+20       3.688160   1.886409e+19
                pressure        1.191273e+19       3.853209   8.242890e+17
                  kineng        4.364250e+18       1.710193   1.333799e+18
              soundspeed        3.904857e+04       2.582062   6.521193e+03
                 Gamma_1        5.327899e-05       2.155268   1.196067e-05
              MachNumber        2.025977e-03       0.623713   1.314856e-03
                 entropy        4.881798e+04       2.988220   6.152279e+03
                 magvort        1.374529e-02       1.541607   4.721544e-03
                    divu        6.651906e-02       1.739739   1.991740e-02
                  eint_E        2.956758e+13       2.669140   4.648627e+12
                  eint_e        2.994106e+13       2.366716   5.805167e+12
                  logden        2.123888e-04       2.815421   3.017209e-05
                StateErr        2.303884e+02       3.836486   1.612736e+01
                  X(He4)        9.217078e-05       2.159111   2.063650e-05
                  X(C12)        9.217168e-05       2.159252   2.063468e-05
                  X(O16)        2.841791e-07       2.945469   3.689076e-08
                 X(Fe56)        2.312958e-36      -1.999997   9.251814e-36
                    abar        2.784591e-04       2.108230   6.458339e-05
              x_velocity        1.216079e+05       3.247312   1.280629e+04
              y_velocity        1.216079e+05       3.247312   1.280629e+04
              z_velocity        0.000000e+00   ------------   0.000000e+00
          t_sound_t_enuc        1.114753e-02       0.415506   8.357938e-03
                  magvel        5.318019e+05       0.615612   3.470821e+05
                  radvel        5.318019e+05       0.615612   3.470821e+05
                  magmom        2.207895e+11       0.638904   1.417912e+11
      angular_momentum_x        0.000000e+00   ------------   0.000000e+00
      angular_momentum_y        0.000000e+00   ------------   0.000000e+00
      angular_momentum_z        1.780409e+17       3.767491   1.307351e+16