Add session token to abstract client

[UnDarkle]

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[AppVeyorBot]

❌ Build rotest 1.0.703 failed (commit 5329f0315b by @UnDarkle)

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❌ Build rotest 1.0.705 failed (commit 6fb1c5b623 by @UnDarkle)

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❌ Build rotest 1.0.707 failed (commit 823cce08d4 by @UnDarkle)

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❌ Build rotest 1.0.709 failed (commit 033c32c88c by @UnDarkle)

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❌ Build rotest 1.0.711 failed (commit 5c93b4cecf by @UnDarkle)

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❌ Build rotest 1.0.713 failed (commit 4dac7067b3 by @UnDarkle)

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✅ Build rotest 1.0.715 completed (commit ae2c634a5b by @UnDarkle)

[coveralls]

Pull Request Test Coverage Report for Build 728

• 77 of 90 (85.56%) changed or added relevant lines in 13 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage increased (+0.1%) to 81.487%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
src/rotest/management/client/client.py	9	10	90.0%
src/rotest/core/result/handlers/remote_db_handler.py	0	12	0.0%

Totals
Change from base Build 711:	0.1%
Covered Lines:	3715
Relevant Lines:	4559

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💛 - Coveralls

[AppVeyorBot]

✅ Build rotest 1.0.717 completed (commit 052e0ac6d4 by @UnDarkle)