[MS2/reports] Add functions to generate a PDF report

[aswanipranjal]

This PR adds the necessary functions to generate a PDF report using the CSV and EPS files created.

• Update the create_csv_fig_from_df function in manuscripts2/report.py so that the diagrams created are of size (8X10) so that they can be used in the PDF generated.

• Add create_data_figs function which calls the functions get_sec_overview, get_sec_project_activity, get_sec_project_process and get_sec_project_community. These functions in turn generate the data for each of the metrics under those sections of the reports. This data (CSV and EPS files) are added to the folders activity, process, community and overview.

• Add latex template files which were being used in the old manuscripts code. Thse files have been modified and the paths of the files have been changed. These latex templates also have the same folders: activity, process, community and overview, so the CSV and EPS files generated in the previous steps is directly added to these folders for easier accessibility.

• Add create_pdf function. This function replaces the strings which are outdated (Copyright information, time periods and such) and adds .tex files to the latex template files (linking the data that is to be displayed in the PDF). Finally, this function generates the final PDF from the main report.tex file.

• Update bin/manuscripts2 to create the report

• Remove underscores from headers and titles so that latex can work with the data.

[coveralls]

Pull Request Test Coverage Report for Build 266

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 62.356%

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Totals
Change from base Build 263:	0.0%
Covered Lines:	1133
Relevant Lines:	1817

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💛 - Coveralls

[aswanipranjal]

@jgbarah please review?

[aswanipranjal]

I am working on bin/manuscripts2 and will update the README.md again with instructions on creating the PDF reports

I'll just create another PR with the updated README.md once I am finished with creating the bin/manuscripts2 (it needs to take input params when run from the command line)

[aswanipranjal]

@jgbarah ping.

[jgbarah]

Sorry for being late to the review. Thanks for merging!