Synchronized to tools/rootcanal
    commit fc1283d0d8bb5bf7939d870cf62cd59346c697db

Changelist:
- LeController: Remove Br-Edr specific methods and fields
- BrEdrController: Remove LE specific methods and fields
- model/controller: Specialize the implementation of dual HCI commands
- model/controller: Specialize implementations of IncomingPacket
- Fix a problem with older version of C++ building acl_connection_handler
- model/controller: Clone LinkLayerController
- DualModeController: Split the link layer controller
- AclConnectionHandler: Allocate connection handles in ranges by type
- AclConnectionHandle: Cleanup GetScoHandle
- model/controller: Apply clang-format
- LeAclConnection: Track connection parameters
- LinkLayerController: Fix use-after-free on LeAclConnection reference
- Silently disconnect all established connections on Reset
- AclConnectionHandler: Implement separate LeAclConnection type
- AclConnectionHandler: Remove helper GetAddressSafe
- AclConnectionHandler: Remove remaining connection helpers
- LinkLayerController: Replace calls to GetHandleOnlyAddress
- AclConnectionHandler: Remove helpers to get address by handle
- LinkLayerController: Specialize ReadRemoteVersionInformation, HandleAcl
- LinkLayerController: Specialize SendLeCommandToRemove, ReadRssi
- LinkLayerController: Harden calls to HasHandle, GetAclConnection
- LinkLayerController: Restructure Disconnect() to process connections by type
- LinkLayerController: Add connection parameter for LL commands
- AclConnection: Add const handle member
- LinkLayerController: Harden the implementation of IncomingLeConnectComplete
- LinkLayerController: Split IncomingPacket according to phy type
- Move the page scan substate information to link layer controller
- Remove pass-through getters from AclConnectionHandler
- Remove unused AclConnectionHandler getters
- RootCanal: Remove pending LE-ACL connection handling from AclConnectionHandler