Remove the gem::hardware::devices package

Description

This MR aims at simplifying the code base, deleting the gem::hardware::devices package, and creating a single xHAL connection per backend board.

Related Issue

Closes #125 (closed) and #124 (closed).

How Has This Been Tested?

Still possible to trigger states the various state transitions and talk to the hardware. Ensuring that taking a tracking data run is possible will be part of !78 (merged).

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes.
• All new and existing tests passed.

gemhardware/devices/interface/amc/GenericAMCSettingsEnums.h

-/// @file GenericAMCSettingsEnums.h
-
-#ifndef GEM_HARDWARE_AMCSETTINGSENUMS_H
-#define GEM_HARDWARE_AMCSETTINGSENUMS_H
-
-namespace gem {
-namespace hardware {
-
-    // TODO: FIXME: replace these constructs with enum class/struct objects (only possible with c++11 or greater)
-    class AMCLinkSettings {
-    public:
-        struct LinkBitMasks {
-            enum ELinkBitMasks {
-                ERROR = 0x01,
-                RECI2C = 0x02,
-                SNTI2C = 0x04,
-                RECREG = 0x08,
-                SNTREG = 0x10,
-            } LinkBitMasks;
-        };
-
-        struct LinkBitShifts {
-            enum ELinkBitShifts {
-                ERROR = 0,
-                RECI2C = 1,
-                SNTI2C = 2,
-                RECREG = 3,
-                SNTREG = 4,
-            } LinkBitShifts;
-        };
-    };
-
-    class AMCSettings {
-    public:
-        struct TTCEncoding { //TTCEncoding settings
-            enum ETTCEncoding { //TTCEncoding settings
-                AMC13 = 0x0, //Use the AMC13 style TTC encoding
-                GEMCSC = 0x1, //Use the CSC/GEM style TTC encoding
-            } TTCEncoding;
-        };
-
-        struct TTCCommand { ///< TTCCommand settings
-            enum ETTCCommand { ///< TTCCommand settings
-                TTC_L1A,
-                TTC_BC0,
-                TTC_EC0,
-                TTC_RESYNC,
-                TTC_OC0,
-                TTC_HARD_RESET,
-                TTC_CALPULSE,
-                TTC_START,
-                TTC_STOP,
-                TTC_TEST_SYNC,
-            } TTCCommand;
-        };
-
-        struct OHLinkCount { ///< OHLinkCount settings
-            enum EOHLinkCount { ///< OHLinkCount settings
-                LINK_NOT_VALID,
-                LINK_MISSED_COMMA,
-                LINK_OVERFLOW,
-                LINK_UNDERFLOW,
-                LINK_SYNC_WORD
-            } OHLinkCount;
-        };
-    }; // class AMCSettings
-} // namespace gem::hardware
-
-// <name>  is the enum scoped namespace for scope::VALUE access
-// <name>T is the enum type
-// typedef the struct for access to the members via struct::VALUE
-typedef gem::hardware::AMCLinkSettings::LinkBitMasks AMCLinkBitMasks;
-typedef gem::hardware::AMCLinkSettings::LinkBitShifts AMCLinkBitShifts;
-
-typedef gem::hardware::AMCSettings::TTCEncoding AMCTTCEncoding;
-typedef gem::hardware::AMCSettings::TTCCommand AMCTTCCommand;
-typedef gem::hardware::AMCSettings::OHLinkCount AMCOHLinkCount;
-
-// typedef the enum for casting and access
-typedef gem::hardware::AMCLinkSettings::LinkBitMasks::ELinkBitMasks AMCLinkBitMasksT;
-typedef gem::hardware::AMCLinkSettings::LinkBitShifts::ELinkBitShifts AMCLinkBitShiftsT;
-
-typedef gem::hardware::AMCSettings::TTCEncoding::ETTCEncoding AMCTTCEncodingT;
-typedef gem::hardware::AMCSettings::TTCCommand::ETTCCommand AMCTTCCommandT;
-typedef gem::hardware::AMCSettings::OHLinkCount::EOHLinkCount AMCOHLinkCountT;
-} // namespace gem
-
-#endif // GEM_HARDWARE_AMCSETTINGSENUMS_H