[Ruby] Auto recreate directories in Ruby samples (#2476)

* purge lib, doc, spec directories before generate Ruby client sample

* update Ruby client samples

samples/client/petstore/ruby/spec/models/additional_properties_class_spec.rb

@@ -32,13 +32,67 @@ describe 'AdditionalPropertiesClass' do
       expect(@instance).to be_instance_of(Petstore::AdditionalPropertiesClass)
     end
   end
-  describe 'test attribute "map_property"' do
+  describe 'test attribute "map_string"' do
     it 'should work' do
       # assertion here. ref: https://www.relishapp.com/rspec/rspec-expectations/docs/built-in-matchers
     end
   end
 
-  describe 'test attribute "map_of_map_property"' do
+  describe 'test attribute "map_number"' do
+    it 'should work' do
+      # assertion here. ref: https://www.relishapp.com/rspec/rspec-expectations/docs/built-in-matchers
+    end
+  end
+
+  describe 'test attribute "map_integer"' do
+    it 'should work' do
+      # assertion here. ref: https://www.relishapp.com/rspec/rspec-expectations/docs/built-in-matchers
+    end
+  end
+
+  describe 'test attribute "map_boolean"' do
+    it 'should work' do
+      # assertion here. ref: https://www.relishapp.com/rspec/rspec-expectations/docs/built-in-matchers
+    end
+  end
+
+  describe 'test attribute "map_array_integer"' do
+    it 'should work' do
+      # assertion here. ref: https://www.relishapp.com/rspec/rspec-expectations/docs/built-in-matchers
+    end
+  end
+
+  describe 'test attribute "map_array_anytype"' do
+    it 'should work' do
+      # assertion here. ref: https://www.relishapp.com/rspec/rspec-expectations/docs/built-in-matchers
+    end
+  end
+
+  describe 'test attribute "map_map_string"' do
+    it 'should work' do
+      # assertion here. ref: https://www.relishapp.com/rspec/rspec-expectations/docs/built-in-matchers
+    end
+  end
+
+  describe 'test attribute "map_map_anytype"' do
+    it 'should work' do
+      # assertion here. ref: https://www.relishapp.com/rspec/rspec-expectations/docs/built-in-matchers
+    end
+  end
+
+  describe 'test attribute "anytype_1"' do
+    it 'should work' do
+      # assertion here. ref: https://www.relishapp.com/rspec/rspec-expectations/docs/built-in-matchers
+    end
+  end
+
+  describe 'test attribute "anytype_2"' do
+    it 'should work' do
+      # assertion here. ref: https://www.relishapp.com/rspec/rspec-expectations/docs/built-in-matchers
+    end
+  end
+
+  describe 'test attribute "anytype_3"' do
     it 'should work' do
       # assertion here. ref: https://www.relishapp.com/rspec/rspec-expectations/docs/built-in-matchers
     end