Feature/ae new picture book code

Here's the new code for the picture book program.

It works very similar to rootana and it's modules files.

Command Line Options:
 - ```-d <directory> Location of the input root files with histograms.```
 - ```-o <filename> Output .tex name.```
 - ```-r <first> <last> Only analyze run numbers between <first> and <last>.``` 
   - If you only want to do one run then just set a range ``` -r n n+1``` where n is the run number you want to use
 - ```-m <modules file> Name of the format file to be used.```

Example Modules File:
```cfg
[CHAPTERS]
Germanium Amplitudes
Trend Amplitudes
Times
TDP TDiffs
TDP Amplitudes

[Germanium Amplitudes]
module=PlotAmplitude
plot_type=Amplitude
sub_plot_type=Ge
logX=true
x_low=100
x_high=1000

[Trend Amplitudes]
module=PlotAmplitude
plot_type=Amplitude
trend_plot=true
draw_option=COLZ
logZ=true

[Times]
module=PlotTime
plot_type=Time
logY=true
y_low=100
y_high=1000

[TDP TDiffs]
module=PlotTDPs
plot_type=_tdiff
draw_option=COLZ
logZ=true
z_low=100
z_high=1000

[TDP Amplitudes]
module=PlotTDPs
plot_type=__amp
draw_option=COLZ
logZ=true
stats_box=true
y_high=3000
x_low=1000
```

Here's some explanation of the possible options for each chapter:
 - ```module``` is the name of the rootana module (and, therefore, the directory) that produces the histograms you want
 - ```plot_type``` and ```sub_plot_type``` are basically strings that are searched for in the histogram name. This allows us to just select (as in the example) the amplitudes from the germanium channels (Ge-F, Ge-S and ScGe). By default, the program will plot all histograms in the directory
 - ```draw_option``` is the normal ROOT option that you want to draw with
 - ```stats_box``` is a bool as to whether you want a stats box drawn
 - ```trend_plot``` another bool to choose whether to create a trend plot from the individual run plots (currently, only 1D run plots are allowed, which creates a 2D trend plot)
 - ```x/y/z_low``` and ```x/y/z_high``` are the axis limits on those axes 
 - ```logX/Y/Z``` is the bool to switch to a log scale

Let me know if there are any suggestions (e.g. options that you think might need adding) or bugs you find.