Simplify the operation sdk

[gregLibert]

To facilitate the reuse of our SDK by external projects beyond wallets, we need to simplify the interconnection of objects:

Replace sendOperation.MakeOperation by directly using an expiration slot instead of the client and expiration delta (calculation to be done on the caller side).
This choice allows to:

• Simplify the function signature (reduce the number of parameters)
• Avoid unnecessarily carrying around a network client (if an operation is created on the caller side, a network client is already necessary at least to properly retrieve the chain ID)
• Remove the func (n *NodeFetcher) MakeOperation and the unnecessary instantiation of a new network client
• Remove a method from the interface func (n *NodeFetcher) MakeOperation

Modify operation.SendOperation by removing the chainID and deducing it directly from the network client.
This choice allows to:

• Simplify the function signature (reduce the number of parameters)
• Remove the unnecessary instantiation of a network client in GetChainID()

[gregLibert]

@Thykof wdyt?

[Thykof]

sendOperation.MakeOperation is in the station repo, so we can create an issue there and after solving it we can update station-massa-wallet dependency to station and refactor:

• Remove the func (n *NodeFetcher) MakeOperation and the unnecessary instantiation of a new network client
• Remove a method from the interface func (n *NodeFetcher) MakeOperation

for "Modify operation.SendOperation" I see low benefit because in internal/handler/wallet/rolls.go we need the chain id for the prompt request, so we will keep the call to GetChainID. However we can do it, and benefit from this refacto:

Remove the unnecessary instantiation of a network client in GetChainID()