adds compat entries

mischmi96 · web-flow · commit b7e58e46fb7b · 2020-10-19T13:40:28.000+02:00
diff --git a/Project.toml b/Project.toml
@@ -11,3 +11,6 @@ NFFT3 = "53104703-03e8-40a5-ab01-812303a44cae"
 
 [compat]
 julia = "1"
+Combinatorics = "1"
+LinearMaps = "2"
+NFFT3 = "1"
