Add McpWeatherApp sample, restructure repo with samples/ directory#10

ahmedmuhsin wants to merge 6 commits intoAzure-Samples:mainAzure-Samples/remote-mcp-functions-java:mainfrom

ahmedmuhsin:feature/mcp-resource-and-metadataahmedmuhsin/remote-mcp-functions-java:feature/mcp-resource-and-metadataCopy head branch name to clipboard