Negmas

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- [situated] adding negotiation quotas and setting negotiator owner
- [base] adding accessor to negotiator's nmi and a setter for the owner
- [sao] removing deadlocks in SAOSyncController
- [tournament] allowing round-robin tournaments to have zero stage winners (which will resolve to one winner)
- [tournament] making median the default metric
- [base] on_negotiation_end is always sent to negotiators
- [base] Adding owner to negotiators to keep track of the agent owning a negotiator.
- [situated] Resolving a possible bug if the victims of a breach were more than one agent

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- [situated] Adding graph construction and drawing
- [situated] renaming contracts in TimeInAgreement to contracts_per_step to avoid name clashes
- [situated] Adding fine control for when are contracts to be signed relative to different main events during the simulation
- [situated] adding basic support for partial contract signature (contracts that are signed by some of the partners are now treated as unsigned until the rest of the partners sign them).
- [situated] changing signatures into a dict inside Contract objects to simplify searching them

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- [genius] adding ParsCat as a Genius Agent
- [situated] added agent specific logs to situated
- [situated] adding simulation steps after and before entity/contract execution
- [situated] adding ignore_contract to ignore contracts completely as if they were never concluded
- [siutated] adding dropped contracts to the possible contract types. Now contracts can be concluded, signed, nullified, erred, breached, executed, and dropped
- [situated] Correcting the implementation of TimeInAgreementMixin taking into account batch signing
- [situated] Added aggregate management of contract signing through sign_all_contracts and on_contracts_finalized. We still support the older sign_contract and on_contract_signed/cancelled as a fallback if sign_all_contracts and on_contracts_finalized are not overriden
- [situated] Now contract related callbacks are called even for contracts ran through run_negotaiation(s)
- [situated] added batch_signing to control whether contracts are signed one by one or in batch. Default is batch (that is different from earlier versions)
- [situated] added force_signing. If set to true, the sign_* methods are never called and all concluded negotiations are immediately considered to be signed. The callbacks on_contracts_finalized (and by extension on_contract_signed/cancelled) will still be called so code that used them will still work as expected. The main difference is in timing.
- replacing -float("inf") with float("-inf") everywhere

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- replacing -float("inf") with float("-inf") everywhere
- [core] avoid importing elicitation in the main negmas __init__
- [concurrent] renaming nested module to chain
- [documentation] improving module listing
- [concurrent] Adding a draft implementation of MultiChainMechanism with the corresponding negotiator
- [elicitors] adding a printout if blist is not available.
- [documentation] improving the structure of module documentation
- [core] Defaulting reserved_value to -inf instead of None and removing unnecessary tests that it is not None
- [core] default __call__ of UtilityFunction now raises an exception if there is an error in evaluating the utility value of an offer instead or returning None
- [core] Adding minmax and outcome_with_utility as members of UtilityFuction. Global functions of the same name are still there for backward compatibility
- [CLI] improving path management for windows environments.
- black formatting

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- [mechainsms] Allowing mechanisms to customize the AMI for each negotiator
- [concurrent] Adding ChainNegotiationMechanism as a first example of concurrent negotiation mechanisms.
- [core] avoiding an import error due to inability to compile blist in windows
- [core] removing the global mechanisms variable and using an internal _mechanism pointer in AMI instead.

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- [situated] Adding events to logging and added the main event types to the documentation of the situated module
- [situated] Do not create log folder if it is not going to be used.
- [negotiators] adding parent property to negotiator to access its controller