Refactor host_repo -> domain errors (#786)

* Refactor domain errors: New -> E, create helper New and Wrap
* Update host repo to use domain errors

internal/host/static/host_set_member.go

@@ -1,8 +1,6 @@
 package static
 
 import (
-	"fmt"
-
 	"github.com/hashicorp/boundary/internal/errors"
 	"github.com/hashicorp/boundary/internal/host/static/store"
 )
@@ -16,11 +14,12 @@ type HostSetMember struct {
 // NewHostSetMember creates a new in memory HostSetMember representing the
 // membership of hostId in hostSetId.
 func NewHostSetMember(hostSetId, hostId string, opt ...Option) (*HostSetMember, error) {
+	const op = "static.NewHostSetMember"
 	if hostSetId == "" {
-		return nil, fmt.Errorf("new: static host set member: no host set id: %w", errors.ErrInvalidParameter)
+		return nil, errors.New(errors.InvalidParameter, op, "no host set id")
 	}
 	if hostId == "" {
-		return nil, fmt.Errorf("new: static host set member: no host id: %w", errors.ErrInvalidParameter)
+		return nil, errors.New(errors.InvalidParameter, op, "no host id")
 	}
 	member := &HostSetMember{
 		HostSetMember: &store.HostSetMember{