Added a gitignore for Vim swap files.
Added a gitignore for Vim swap files.

t3hpr1m3/typhoeus,chazsconi/typhoeus,tompscanlan/typhoeus,typhoeus/typhoeus,AvnerCohen/typhoeus,nevans/typhoeus,PericlesTheo/typhoeus,bitgal/typhoeus,kkirsche/typhoeus,markschmidt/typhoeus,sportngin/typhoeus,bitherder/typhoeus,telekomatrix/typhoeus,xing/typhoeus,pravi/typhoeus,markschmidt/typhoeus,chazsconi/typhoeus,EddyLuten/typhoeus,wcmonty/typhoeus,nju520/typhoeus,tinfoil/typhoeus,xing/typhoeus,bitherder/typhoeus