Update Vim.gitignore (#3169)

.svg files are more often than not vector files. You need to exceed 36 swap files for a .svg file to come from Vim.

Global/Vim.gitignore

 # Swap
 [._]*.s[a-v][a-z]
+!*.svg  # comment out if you don't need vector files
 [._]*.sw[a-p]
 [._]s[a-rt-v][a-z]
 [._]ss[a-gi-z]