New functionality to generate QUIP Operation File

[pllim]

Fix #50

Close #49

Example content of the generated QUIP Operation File:

<?xml version="1.0" ?>
<QUIP_OPERATION_FILE creator="QUIP" date="2019-03-13Z" operational="false" time="18:00:17.508383Z" version="1.0.1.dev346" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="quip_operation_file.xsd">
    <CORRECTION_ID>R2017061401</CORRECTION_ID>
    <OPERATION_TYPE>MIMF</OPERATION_TYPE>
    <IMAGES>
        <IMAGE_PATH>/my/path/inputs/ball_fqt_image001.fits</IMAGE_PATH>
        <IMAGE_PATH>/my/path/inputs/ball_fqt_image002.fits</IMAGE_PATH>
    </IMAGES>
    <OUTPUT>
        <OUTPUT_DIRECTORY>/my/path/quip</OUTPUT_DIRECTORY>
        <LOG_FILE_PATH>/my/path/quip/R2017061401_quip_activity_log.xml</LOG_FILE_PATH>
        <OUT_FILE_PATH>/my/path/quip/R2017061401_quip_out.xml</OUT_FILE_PATH>
    </OUTPUT>
</QUIP_OPERATION_FILE>

[pllim]

Thanks for the review, @shanosborne !