New MCP Schema types (#386)

Implement the last version of the mcp schema and complete restructuring
of the mcp schema implementation from a monolithic `types.kt` file into
separate files.

- #158 
- #185 
- #353 
- #298 
- #248 

## Motivation and Context
The previous implementation of the mcp schema was outdated and contained
several issues. In addition, it stored all mcp types in a single large
file, which made maintenance and further development more difficult

## How Has This Been Tested?
All tests passed

## Breaking Changes
Yes. The new types are now located in a separate package. Additionally,
many types have new parameters and modified constructors

## Types of changes
- [x] Bug fix (non-breaking change which fixes an issue)
- [x] New feature (non-breaking change which adds functionality)
- [x] Breaking change (fix or feature that would cause existing
functionality to change)
- [ ] Documentation update

## Checklist
- [x] I have read the [MCP
Documentation](https://modelcontextprotocol.io)
- [x] My code follows the repository's style guidelines
- [x] New and existing tests pass locally
- [x] I have added appropriate error handling
- [x] I have added or updated documentation as needed

## Additional context
to adopt the new structure:
**Before:**
```kotlin
  import io.modelcontextprotocol.kotlin.sdk.InitializeRequest
  import io.modelcontextprotocol.kotlin.sdk.Resource
```

**After:**
```kotlin
  import io.modelcontextprotocol.kotlin.sdk.types.InitializeRequest
  import io.modelcontextprotocol.kotlin.sdk.types.Resource
```

build.gradle.kts

@@ -38,8 +38,11 @@ kover {
     reports {
         filters {
             includes.classes("io.modelcontextprotocol.kotlin.sdk.*")
-            excludes.classes("io.modelcontextprotocol.kotlin.sdk.models.*") // temporary
-            excludes.classes("io.modelcontextprotocol.kotlin.sdk.models.infrastructure.*") // generated
+            excludes {
+                annotatedBy("kotlin.Deprecated")
+                classes("io.modelcontextprotocol.kotlin.sdk.models.*") // temporary
+                classes("io.modelcontextprotocol.kotlin.sdk.models.infrastructure.*") // generated
+            }
         }
         total {
             log {