feat(cli): Implement address flag for boundary targets create/update

This commit adds CLI support for addresses to be attached directly to a
Target, for all current types of Target (ssh and tcp).

It also clarifies the relevant documentation regarding the autogen of
API option functionality.

api/targets/option.gen.go

@@ -87,6 +87,18 @@ func WithRecursive(recurse bool) Option {
 	}
 }
 
+func WithAddress(inAddress string) Option {
+	return func(o *options) {
+		o.postMap["address"] = inAddress
+	}
+}
+
+func DefaultAddress() Option {
+	return func(o *options) {
+		o.postMap["address"] = nil
+	}
+}
+
 func WithApplicationCredentialSourceIds(inApplicationCredentialSourceIds []string) Option {
 	return func(o *options) {
 		o.postMap["application_credential_source_ids"] = inApplicationCredentialSourceIds

api/targets/target.gen.go

@@ -37,6 +37,7 @@ type Target struct {
 	InjectedApplicationCredentialSources   []*CredentialSource    `json:"injected_application_credential_sources,omitempty"`
 	Attributes                             map[string]interface{} `json:"attributes,omitempty"`
 	AuthorizedActions                      []string               `json:"authorized_actions,omitempty"`
+	Address                                string                 `json:"address,omitempty"`
 
 	response *api.Response
 }