Generate a self signed cert on ds creation/update (#6024)

[zrhoffman]

Backport of #6024 for 6.0.x

Resolved conflict:

diff --cc traffic_ops/traffic_ops_golang/config/config.go
index 3041441aec,b7be58ae24..0000000000
--- a/traffic_ops/traffic_ops_golang/config/config.go
+++ b/traffic_ops/traffic_ops_golang/config/config.go
@@@ -58,7 -58,9 +58,13 @@@ type Config struct 
  	InfluxEnabled          bool
  	InfluxDBConfPath       string `json:"influxdb_conf_path"`
  	Version                string
++<<<<<<< HEAD
 +	UseIMS                 bool `json:"use_ims"`
++=======
+ 	UseIMS                 bool                    `json:"use_ims"`
+ 	RoleBasedPermissions   bool                    `json:"role_based_permissions"`
+ 	DefaultCertificateInfo *DefaultCertificateInfo `json:"default_certificate_info"`
++>>>>>>> 7d0472dc25 (Generate a self signed cert on ds creation/update (#6024))
  }
  
  // ConfigHypnotoad carries http setting for hypnotoad (mojolicious) server