Resolve "SolverCeres stop solving if can update"

Closes #354 (closed)

added Doing label

added 2 commits

• 36f54747 - period and verbose in SolverManager
• 8e1c166e - implemented iteration callback checking for problem update

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added 2 commits

• 46190d13 - wip
• 3eed8d08 - iteration callback working

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unmarked as a Work In Progress

added 4 commits

• 3eed8d08...8769670d - 2 commits from branch devel
• b8724522 - Merge branch 'devel' into 354-solverceres-stop-solving-if-can-update
• 1fd61ca5 - strange bug initialization

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merged

mentioned in commit 0fd6a732

mentioned in issue #355 (closed)