[master] Add .gitignore files

src/bin/auth/tests/testdata/.gitignore

@@ -0,0 +1,8 @@
+/badExampleQuery_fromWire.wire
+/examplequery_fromWire.wire
+/iqueryresponse_fromWire.wire
+/multiquestion_fromWire.wire
+/queryBadEDNS_fromWire.wire
+/shortanswer_fromWire.wire
+/simplequery_fromWire.wire
+/simpleresponse_fromWire.wire

src/bin/cfgmgr/plugins/.gitignore

@@ -0,0 +1,2 @@
+/datasrc.spec
+/datasrc.spec.pre

src/lib/datasrc/memory/tests/.gitignore

@@ -0,0 +1 @@
+/run_unittests