Release version 0.1.5

Changed class elements order according to updated Polymorphine/Dev
coding standard (version 0.6.0).

Release version 0.1.4

Changes:
- Expanded psr/http-message version compatibility with 2.x

Misc:
- Refactored test methods

Release version 0.1.3

Upgraded codebase to php 8.4
- Upgraded dev package & project skeleton
- Removed implicitly nullable arguments

Release version 0.1.2

- Synchronized package files with skeleton template

Release version 0.1.1

- Expanded required php version with ^8.0
- Added cs testing script to composer.json
- Updated GitHub workflow script

Release version 0.1.0

HTTP session context service handled by PSR-15 middleware
- native session implementation only
- missing documantation
- possible API changes