Add module tag to elixir test cases (#3178)

Some elixir test cases don't have actual module tag. Add tags to
help include or exclude them in CI test.

test/elixir/test/update_documents_test.exs

@@ -1,6 +1,7 @@
 defmodule UpdateDocumentsTest do
  use CouchTestCase
 
+ @moduletag :docs
  @moduletag kind: :single_node
 
  @ddoc %{

test/elixir/test/view_collation_raw_test.exs

@@ -6,6 +6,7 @@ defmodule ViewCollationRawTest do
  This is a port of the view_collation_raw.js suite
  """
 
+ @moduletag :view_collation_raw
  @moduletag kind: :single_node
 
  @values [

test/elixir/test/view_collation_test.exs

@@ -6,6 +6,7 @@ defmodule ViewCollationTest do
  This is a port of the view_collation.js suite
  """
 
+ @moduletag :view_collation
  @moduletag kind: :single_node
 
  @values [

test/elixir/test/view_compaction_test.exs

@@ -6,6 +6,7 @@ defmodule ViewCompactionTest do
  This is a port of the view_compaction.js suite
  """
 
+ @moduletag :view_compaction
  @moduletag kind: :single_node
 
  @num_docs 1000

test/elixir/test/view_conflicts_test.exs

@@ -1,6 +1,7 @@
 defmodule ViewConflictsTest do
  use CouchTestCase
 
+ @moduletag :view_conflicts
  @moduletag kind: :single_node
 
  setup_all do

test/elixir/test/view_errors_test.exs

@@ -1,6 +1,7 @@
 defmodule ViewErrorsTest do
  use CouchTestCase
 
+ @moduletag :view_errors
  @moduletag kind: :single_node
 
  @document %{integer: 1, string: "1", array: [1, 2, 3]}

test/elixir/test/view_include_docs_test.exs

@@ -1,6 +1,7 @@
 defmodule ViewIncludeDocsTest do
  use CouchTestCase
 
+ @moduletag :view_include_docs
  @moduletag kind: :single_node
 
  @ddoc %{

test/elixir/test/view_multi_key_all_docs_test.exs

@@ -1,6 +1,7 @@
 defmodule ViewMultiKeyAllDocsTest do
  use CouchTestCase
 
+ @moduletag :view_multi_key_all_docs
  @moduletag kind: :single_node
 
  @keys ["10", "15", "30", "37", "50"]

test/elixir/test/view_multi_key_design_test.exs

@@ -1,6 +1,7 @@
 defmodule ViewMultiKeyDesignTest do
  use CouchTestCase
 
+ @moduletag :view_multi_key_design
  @moduletag kind: :single_node
 
  @keys [10, 15, 30, 37, 50]

test/elixir/test/view_sandboxing_test.exs

@@ -1,6 +1,7 @@
 defmodule ViewSandboxingTest do
  use CouchTestCase
 
+ @moduletag :view_sandboxing
  @moduletag kind: :single_node
 
  @document %{integer: 1, string: "1", array: [1, 2, 3]}