account: storage, processing and method on balances update (#916)

* account: update account storage, retrieval and implement alert functionality when a currency change occurs.

* account: Add cancel channel

* account: remove old code

* account: don't embed mutex

* Update exchanges/account/account.go

Co-authored-by: Scott <gloriousCode@users.noreply.github.com>

* Update exchanges/account/account.go

Co-authored-by: Scott <gloriousCode@users.noreply.github.com>

* Update exchanges/account/account.go

Co-authored-by: Scott <gloriousCode@users.noreply.github.com>

* account: addr nits

* account: Pull out test into indiv.

* account: Add test for update method

* account: add no change to test

* Update exchanges/account/account.go

Co-authored-by: Scott <gloriousCode@users.noreply.github.com>

* glorious: nits

* account/portfolio: differentiate between asset type segregation and default to spot holdings.

* glorious: nits

* thrasher: nit

* ticker: fix spelling

* Update engine/portfolio_manager.go

Co-authored-by: Adrian Gallagher <adrian.gallagher@thrasher.io>

* thrasher: nits

Co-authored-by: Scott <gloriousCode@users.noreply.github.com>
Co-authored-by: Adrian Gallagher <adrian.gallagher@thrasher.io>

exchanges/protocol/features.go

@@ -44,4 +44,8 @@ type Features struct {
 	MultiChainDeposits                bool `json:"multiChainDeposits,omitempty"`
 	MultiChainWithdrawals             bool `json:"multiChainWithdrawals,omitempty"`
 	MultiChainDepositRequiresChainSet bool `json:"multiChainDepositRequiresChainSet,omitempty"`
+
+	// HasAssetTypeAccountSegregation is when the assets are divided into asset
+	// types instead of just being denoted as spot holdings.
+	HasAssetTypeAccountSegregation bool `json:"hasAssetTypeAccountSegregation,omitempty"`
 }