Add create, list, lookup functions for plugin based host catalogs (#1515)

Create the repository for plugin host catalogs.  A large TODO is left in the code to interface with the plugin system once ready.

internal/host/plugin/testing.go

@@ -14,12 +14,12 @@ import (
 // TestCatalog creates count number of plugin host catalogs to the provided DB
 // with the provided scope id.  If any errors are encountered during the creation of
 // the host catalog, the test will fail.
-func TestCatalog(t *testing.T, conn *gorm.DB, pluginId, scopeId string, opt ...Option) *HostCatalog {
+func TestCatalog(t *testing.T, conn *gorm.DB, scopeId, pluginId string, opt ...Option) *HostCatalog {
 	t.Helper()
 	ctx := context.Background()
 	w := db.New(conn)
 
-	cat, err := NewHostCatalog(ctx, pluginId, scopeId, opt...)
+	cat, err := NewHostCatalog(ctx, scopeId, pluginId, opt...)
 	require.NoError(t, err)
 	assert.NotNil(t, cat)
 
@@ -27,7 +27,7 @@ func TestCatalog(t *testing.T, conn *gorm.DB, pluginId, scopeId string, opt ...O
 	plg.PublicId = pluginId
 	require.NoError(t, w.LookupByPublicId(ctx, plg))
 
-	id, err := newHostCatalogId(plg.GetIdPrefix())
+	id, err := newHostCatalogId(ctx, plg.GetIdPrefix())
 	assert.NoError(t, err)
 	assert.NotEmpty(t, id)
 	cat.PublicId = id
@@ -57,7 +57,7 @@ func TestSet(t *testing.T, conn *gorm.DB, catalogId string, opt ...Option) *Host
 	plg.PublicId = cg.GetPluginId()
 	require.NoError(t, w.LookupByPublicId(ctx, plg))
 
-	id, err := newHostSetId(plg.GetIdPrefix())
+	id, err := newHostSetId(ctx, plg.GetIdPrefix())
 	assert.NoError(err)
 	assert.NotEmpty(id)
 	set.PublicId = id