Link a new fortran template to existing c++ one

As per #1140

diff --git a/Fortran.gitignore b/Fortran.gitignore
new file mode 120000 (symlink)
index 0000000..5daba98
--- /dev/null
+++ b/Fortran.gitignore
@@ -0,0 +1 @@
+C++.gitignore
\ No newline at end of file