MongoDriver : allow to choose kotlinx, Jackson or a custom implementation

[nroulon]

At the moment MongoDriver serialize objet in JSON. For other issues we need to serialize Script in BSON but it can be result on conflict with project dependency that import datamaintain.

Tasks :

• Remove kotlinx from mongoDriver
• Propose a kotlinx module that extends mongoDriver
• Propose a jackson module that extends mongoDriver

Document how to implement a custom driver from mongoDriver dependency if kotlinx or jackson is not use or incompatible.

[nroulon]

WIP on the branch #174

Refacto for add JsonMapper interface with two methods :

• toJson
• fromJson

The mongo code call the JsonMapper directly with two types :

• toJson : ExecutedScript
• fromJson : Array<LightExecutedScriptDb> (Array is more easy to implements for serializer than Sequence)

3 implementations of JsonMapper (last version only) :

• Kotlinx Serialization
• Jackson
• Gson

All implementation import the module driver-mongo-mapping-test for ensure that implementation works and respect some rule (allowed unknown fields on serialization for example)

Default implementation for tests and cli is Serialization.

[nroulon]

WIP :

• The implementations can be load via ServiceLoader : if you add a driver-mongo-mapper module to your dependency, Datamaintain will automatically load this serializer if the user does not pass it to MongoDriverConfig
• The implementation can be load via properties.

The idea is to be able to load the JsonMapper by :

• SPI if an official module has been added
• MongoDriverConfig (constructor or properties) if a custom implementaiton of JsonMapper is needed or if multiple official driver-mongo-mapper modules are present

[nroulon]

Move in 3.0.0.