add scrape-course-data.r
add scrape-course-data.r

scrape-course-data.r uses two constants defined in its first two
lines to parse course data from Concordia websites into csv files.

Final implementation of the course data scraping will read
all url/css-selector pairs from a text file instead of having
a single pair defined at the top of the scraper code.

Signed-off-by: Stuart Mashaal <a52c3020991f9b0e0232fbda27499bb27f7511f6@gmail.com>

stumash/CoursePlanner,stumash/CoursePlanner,stumash/CoursePlanner,stumash/CoursePlanner,stumash/CoursePlanner