Add generic and gripper FromDependencies methods (viamrobotics#4747)

Author: randhid

components/generic/generic.go

@@ -31,6 +31,12 @@ func Named(name string) resource.Name {
 	return resource.NewName(API, name)
 }
 
+// FromDependencies is a helper for getting the named generic from a collection of
+// dependencies.
+func FromDependencies(deps resource.Dependencies, name string) (resource.Resource, error) {
+	return resource.FromDependencies[resource.Resource](deps, Named(name))
+}
+
 // FromRobot is a helper for getting the named Generic from the given Robot.
 func FromRobot(r robot.Robot, name string) (resource.Resource, error) {
 	return robot.ResourceFromRobot[resource.Resource](r, Named(name))

components/gripper/gripper.go

@@ -79,6 +79,12 @@ func FromRobot(r robot.Robot, name string) (Gripper, error) {
 	return robot.ResourceFromRobot[Gripper](r, Named(name))
 }
 
+// FromDependencies is a helper for getting the named gripper from a collection of
+// dependencies.
+func FromDependencies(deps resource.Dependencies, name string) (Gripper, error) {
+	return resource.FromDependencies[Gripper](deps, Named(name))
+}
+
 // NamesFromRobot is a helper for getting all gripper names from the given Robot.
 func NamesFromRobot(r robot.Robot) []string {
 	return robot.NamesByAPI(r, API)