* fix: improve model ID field customization (#604)

Updates places where `"id"` was hardcoded instead of using `model.IDField()`.

* Ensure uninitialized map is initialized when unmarshaling json
Add tests for this scenario

* exclude migration_table_name from connection string

* add test for OptionsString

* Add support for pointer FKs when preloading a belongs_to association (#602)

* feat: support context-aware tablenames (#614)

This patch adds a feature which enables pop to pass down the connection context to the model's TableName() function by implementing TableName(ctx context.Context) string. The context can be used to dynamically generate tablenames which can be important for prefixed or generic tables and other use cases.

* Bump pg deps (#616)

* Reset to development

* bumping pgx and pgconn versions

Co-authored-by: Stanislas Michalak <stanislas.michalak@gmail.com>
Co-authored-by: Larry M Jordan <larrymoralesjordan@gmail.com>

Co-authored-by: Patrik <zepatrik@users.noreply.github.com>
Co-authored-by: Michael Montgomery <mmontg1@gmail.com>
Co-authored-by: kyrozetera <jasonhale.w@gmail.com>
Co-authored-by: Reggie Riser <4960757+reggieriser@users.noreply.github.com>
Co-authored-by: hackerman <3372410+aeneasr@users.noreply.github.com>
Co-authored-by: Stanislas Michalak <stanislas.michalak@gmail.com>
Co-authored-by: Larry M Jordan <larrymoralesjordan@gmail.com>