Top up the reward tokens in the pool box from a buyback box

[greenhat]

Ref #254

[coveralls]

Pull Request Test Coverage Report for Build 4936612126

• 68 of 126 (53.97%) changed or added relevant lines in 19 files are covered.
• 5 unchanged lines in 3 files lost coverage.
• Overall coverage decreased (-0.2%) to 60.08%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
core/src/datapoint_source.rs	0	1	0.0%
core/src/datapoint_source/custom_ext_script.rs	0	1	0.0%
core/src/datapoint_source/predef.rs	0	1	0.0%
core/src/pool_commands.rs	0	1	0.0%
core/src/pool_commands/refresh.rs	39	40	97.5%
core/src/api.rs	0	4	0.0%
core/src/spec_token.rs	0	4	0.0%
core/src/actions.rs	0	6	0.0%
core/src/main.rs	0	6	0.0%
core/src/oracle_state.rs	0	14	0.0%

Files with Coverage Reduction	New Missed Lines	%
core/src/scans/registry.rs	1	5.41%
core/src/actions.rs	2	0%
core/src/oracle_state.rs	2	0%

Totals
Change from base Build 4699021763:	-0.2%
Covered Lines:	2095
Relevant Lines:	3487

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💛 - Coveralls