fix(service json consumption): Fix where content_type param won't work with charset included

Author: maxnussbaum

lib/ibm_watson/personality_insights_v3.rb

@@ -241,7 +241,7 @@ def profile(content:, content_type:, accept: nil, content_language: nil, accept_
         "csv_headers" => csv_headers,
         "consumption_preferences" => consumption_preferences
       }
-      if content_type == "application/json" && content.instance_of?(Hash)
+      if content_type.start_with?("application/json") && content.instance_of?(Hash)
         data = content.to_json
       else
         data = content

lib/ibm_watson/tone_analyzer_v3.rb

@@ -214,7 +214,7 @@ def tone(tone_input:, content_type:, sentences: nil, tones: nil, content_languag
         "sentences" => sentences,
         "tones" => tones.to_a
       }
-      if content_type == "application/json" && tone_input.instance_of?(Hash)
+      if content_type.start_with?("application/json") && tone_input.instance_of?(Hash)
         data = tone_input.to_json
       else
         data = tone_input