[IMP] base_search_fuzzy - add support of translatable fields

[MIG] session_db from 18 to 19

[MIG] session_db: Migration to 19.0

[ADD] field_float_nullable: New field type float that supports NULL v…

…alues instead of defaulting to 0.0

[FIX] base_technical_user - Error message when no technical user.

When we use use_tech(raise_if_missing=True) and the technical user (user_tech_id) is not defined on the current company, the error message who said that field is empty should be related to the active company and not related to the default user's company.

[FIX] tracking_manager: fix specific case when the user want to track…

… special M2M fields (ex attachment_ids) who depends on res_id and res_model and should be tracked on every models

[ADD] field_float_nullable: New field type float that supports NULL v…

…alues instead of defaulting to 0.0

[ADD] field_vector: New field type for vector column

[ADD] field_vector: New field type for vector column

[ADD] field_vector: New field type for vector column