Add tests for (named) bitstring to suite_asn1write
diff --git a/tests/data_files/server1.req.key_usage b/tests/data_files/server1.req.key_usage
index 4c20eed..30e4812 100644
--- a/tests/data_files/server1.req.key_usage
+++ b/tests/data_files/server1.req.key_usage
@@ -7,11 +7,11 @@
W+cTl4W1I5LZ1CQG1QkliXUH3aYajz8JGb6tZSxk65Wb3P5BXhem2mxbacwCuhQs
FiScStzN0PdSZ3PxLaAj/X70McotcMqJCwTbLqZPcG6ezr1YieJTWZ5uWpJl4og/
DJQZo93l6J2VE+0p26twEtxaymsXq1KCVLECAwEAAaAeMBwGCSqGSIb3DQEJDjEP
-MA0wCwYDVR0PBAQDAgHgMA0GCSqGSIb3DQEBBQUAA4IBAQAIDkjGHokLINOSKAij
-DuBWyW72udNBwSmRAFYDyNoybWX+KJLFckyReF1S0YRHXWOljwxERF6htUEqIJDI
-vIzlXyV0YqHNmWEFpyRxyIllQ7X4NWnVm3zHYORx2utdy3EyNsNb4Rb/JNh6Qpqr
-27DB+frWaBYk27RPTdZz/ItZIicX8iHrAHL0aC6raQYvZfM1ybYehAh7Qx3asHKI
-XDcrbV50Kzrd0SgC4P6Z6/5C5uUL9AfcKnB2oj5VP2TM0BA6q+XRQFkJ3TO1UTLB
-lCKb9B1cIpVsT0YsOg/qptUh90zgd0x7FDa084ccwUJG73VXtHC6eioE4fbfrm5L
-9BNK
+MA0wCwYDVR0PBAQDAgXgMA0GCSqGSIb3DQEBBQUAA4IBAQBsJ3v1Ar2X28GJsRSJ
+WRQwFQwIbR/D0cHrwTf0ZfZttClytuc18JZlwkH3EG/rNkWaFp6MKIZoRMOBuSPc
+MNvvKIo4nPaeouDPruymx0gNenlyRL3D4OZpBO/BmQIQjbUKWFbzEnEqvwvMDUnG
+8w7UjPSFcxj2HzENr62HLPKKnVpL3nDXWK1a2A77KF9aMxyoWQ6FXb2xPD9cJjdo
+c1jwskQbgosQzKKwwp5yxq0zRD3EAGw4A78mgHMfgFprq9e9azaB0JeyFG2Vn0t0
+L+vfiDEVQ3eJXSCen1kEVyHRju8g53UcSgd+JicWFboFj2/mJBuyW6yM++RGA9B5
+Zd62
-----END CERTIFICATE REQUEST-----