Enable steering files to configure the time minimizer used in RawTrackerHitFitterDriver

[cbravo135]

PhysicsRun2019_pass0_recon_evio.lcsim was also updated to use Migrad.

[cbravo135]

Here is some output setting the minimizer to Simplex:

collection name : SVTShapeFitParameters
 parameters: 

--------------- print out of LCGenericObject collection --------------- 

  flag:  0x80000000

 [   id   ]  - isFixedSize: false
 --------------------------------------------------------
 [00001656] d:0.73; d:3.97; d:1801.36; d:472.24; d:0.63;  --------------------------------------------------------
 [00001657] d:16.01; d:7.60; d:1133.01; d:319.97; d:0.91;  --------------------------------------------------------
 [00001658] d:-4.81; d:27.76; d:129.58; d:302.63; d:0.74;  --------------------------------------------------------
 [00001659] d:-64.20; d:11.42; d:261.94; d:304.45; d:0.92;  --------------------------------------------------------
 [00001660] d:-41.39; d:nan; d:200.04; d:297.99; d:0.95;  --------------------------------------------------------
 [00001661] d:-7.46; d:nan; d:210.48; d:305.43; d:0.91;  --------------------------------------------------------

Here is some output with it set to Migrad:

collection name : SVTShapeFitParameters
parameters: 

--------------- print out of LCGenericObject collection --------------- 

 flag:  0x80000000

[   id   ]  - isFixedSize: false
--------------------------------------------------------
[00001239] d:3.18; d:2.27; d:1824.64; d:472.07; d:0.64;  --------------------------------------------------------
[00001240] d:4.27; d:1.68; d:1496.56; d:468.70; d:0.95;  --------------------------------------------------------
[00001241] d:-0.15; d:1.64; d:1433.48; d:286.65; d:0.75;  --------------------------------------------------------
[00001242] d:-83.03; d:4.21; d:1521.75; d:323.20; d:0.76;  --------------------------------------------------------
[00001243] d:18.97; d:2.46; d:1119.36; d:291.59; d:0.37;  --------------------------------------------------------
[00001244] d:-88.88; d:8.43; d:1172.00; d:292.41; d:0.62;  --------------------------------------------------------
[00001245] d:-82.87; d:5.44; d:1094.98; d:323.55; d:0.83;  --------------------------------------------------------
[00001246] d:-85.51; d:50.74; d:160.45; d:335.98; d:0.71;  --------------------------------------------------------
[00001247] d:2.32; d:2.85; d:974.56; d:281.74; d:0.36;  --------------------------------------------------------
[00001248] d:-79.99; d:12.21; d:358.74; d:302.54; d:0.88;  --------------------------------------------------------
[00001249] d:-75.31; d:8.53; d:294.86; d:284.03; d:0.97;  --------------------------------------------------------
[00001250] d:-5.21; d:8.33; d:161.07; d:238.45; d:0.77;  --------------------------------------------------------
[00001251] d:-87.86; d:5.03; d:1177.84; d:260.51; d:0.77;  --------------------------------------------------------

[normangraf]

This adds needed functionality to our reconstruction.
All tests pass.
Please proceed.