🔧 Update ERNIE-Bot.SDK and sample projects

[xbotter]

• Update Microsoft.KernelMemory.Core to version 0.27.240205.2
• Update Microsoft.SemanticKernel.Abstractions and Microsoft.SemanticKernel.Core to version 1.3.0
• Update Microsoft.SemanticKernel.Plugins.Core and Microsoft.SemanticKernel.Plugins.Memory to version 1.3.0-alpha
• Update Microsoft.NET.Test.Sdk to version 17.10.0-preview-24080-01
• Update System.Text.Json to version 8.0.1
• Update xunit to version 2.6.6
• Update xunit.runner.visualstudio to version 2.5.6
• Update ERNIE-Bot-Kernel-Memory.Sample and ERNIE-Bot.Sample projects
• Add new endpoint for JSON format in ERNIE-Bot.Sample
• Add new endpoint for getting usage in SK-ERNIE-Bot.Sample
• Update Directory.Build.props with new version 0.14.0
• Update ModelEndpoints.cs with new version 1.3.0

🔧 Update ERNIE-Bot.SDK ModelEndpoints and ChatRequest

• Update the ERNIE_Bot_8K model endpoint in the ModelEndpoints class to have a space between the model name and the port number.
• Update the XuanYuan_70B_Chat_4bit model endpoint in the ModelEndpoints class to remove the space between the model name and the parentheses.
• Add a new embedding model endpoint called Tao_8k with a token size of 8192.
• Add a new property called ResponseFormat to the ChatRequest class to specify the format of the response content.
• Add a new property called MaxTokens to the ChatRequest class to specify the maximum number of output tokens.

Summary:

• Updated model endpoints in the ERNIE-Bot.SDK ModelEndpoints class.
• Added new properties to the ChatRequest class for specifying response format and maximum output tokens.

🔧 Fix system message handling

• Fix handling of system messages in ERNIEBotChatCompletion.cs
• Update logic to assign system message content to 'system' variable
• Exclude system messages from the returned chat history

📝 Update ERNIEBotChatMessage constructors

• Remove unused constructor in ERNIEBotChatMessage class
• Update existing constructor to include metadata parameter

📝 Update ERNIEBotStreamingChatMessage constructors

• Remove unused constructor in ERNIEBotStreamingChatMessage class
• Update existing constructor to include metadata parameter