CU-865cn6kqn Model capabilities and AIScope simplification. (#214)

* Generic AI client and models with open-ai client impl from https://github.com/aallam/openai-kotlin

* type LLM models based on their capabilities and type the operations

* add token as parameter to `openAI` fn falling back to env variable

* add config as optional parameter

* remove old config

* adapt to latest changes from main and new java module

* have openai be its own module that depends on xef-core. kotlin, scala and java depends on openai module for defaults. xef core does not depend on open ai

* fix bug in scala fn name for serialization

* make AIClient : AutoCloseable

* Rename enum cases

* Rename to TEXT_EMBEDDING_ADA_002

* Fix AIClient close expectation

* Progress with models

* Refactor to have models typed and increase ergonomics

* Loading embeddings and tokenizer from huggingface, dynamic loading of local models. Local models can be use in the AI DSL and interleaved with any model.

* remove non used repositories

* Fix functions model to GPT_3_5_TURBO_FUNCTIONS and example without AI block and manual component construction

* remove unused import

* Small suggestions

* More small suggestions

- Replace blocks with equals / single expressions

---------

Co-authored-by: Simon Vergauwen <nomisRev@users.noreply.github.com>
Co-authored-by: Diego E. Alonso <diego.e.a@47deg.com>

core/src/commonMain/kotlin/com/xebia/functional/xef/auto/AI.kt

@@ -1,11 +1,7 @@
 package com.xebia.functional.xef.auto
 
-import com.xebia.functional.xef.AIError
-import com.xebia.functional.xef.llm.AIClient
 import com.xebia.functional.xef.vectorstores.VectorStore
 
-@DslMarker annotation class AiDsl
-
 /**
  * An [AI] value represents an action relying on artificial intelligence that can be run to produce
  * an `A`. This value is _lazy_ and can be combined with other `AI` values using
@@ -18,10 +14,3 @@ typealias AI<A> = suspend CoreAIScope.() -> A
 
 /** A DSL block that makes it more convenient to construct [AI] values. */
 inline fun <A> ai(noinline block: suspend CoreAIScope.() -> A): AI<A> = block
-
-suspend fun <A> AIScope(runtime: AIRuntime<A>, block: AI<A>, orElse: suspend (AIError) -> A): A =
-  try {
-    runtime.runtime(block)
-  } catch (e: AIError) {
-    orElse(e)
-  }

core/src/commonMain/kotlin/com/xebia/functional/xef/auto/AiDsl.kt

@@ -0,0 +1,3 @@
+package com.xebia.functional.xef.auto
+
+@DslMarker annotation class AiDsl