Share code and data with lbuild queries, fix config aliases

[salkinium]

This uses lbuild queries to share code and data within the build script generators using lbuild queries.
You can discover them with lbuild discover -n modm:build --developer.

In addition, repository configuration aliases are now also lbuild discover-able, however, due to my own stupidity, I prefixed each name with board:, thus putting the board separator : in the name, which breaks path resolution in lbuild. This is now being checked in v1.7.1, however, it is now necessary to remove the : from the alias' names, thus this is a breaking change. Sorry.

 $ lbuild discover
Parser(lbuild)
╰── Repository(modm @ .)   modm: a barebone embedded library generator
    ├── EnumerationOption(target) = REQUIRED in [...]
    ├── Configuration(modm:al-avreb-can)   AL-AVREB_CAN Board
    ├── Configuration(modm:arduino-uno)   Arduino UNO
    ├── Configuration(modm:black-pill)   Black Pill
    ├── Configuration(modm:blue-pill)   Blue Pill
    ├── Configuration(modm:disco-f051r8)   STM32F0DISCOVERY
    ├── Configuration(modm:disco-f072rb)   STM32F072DISCOVERY
    ├── Configuration(modm:disco-f100rb)   STM32VLDISCOVERY
    ├── Configuration(modm:disco-f303vc)   STM32F3DISCOVERY
    ├── Configuration(modm:disco-f407vg)   STM32F4DISCOVERY
    ├── Configuration(modm:disco-f429zi)   STM32F429IDISCOVERY
    ├── Configuration(modm:disco-f469ni)   STM32F469IDISCOVERY
    ├── Configuration(modm:disco-f746ng)   STM32F7DISCOVERY
    ├── Configuration(modm:disco-f769ni)   STM32F769IDISCOVERY
    ├── Configuration(modm:disco-l476vg)   STM32L476DISCOVERY
    ├── Configuration(modm:nucleo-f031k6)   NUCLEO-F031K6
    ├── Configuration(modm:nucleo-f042k6)   NUCLEO-F042K6
    ├── Configuration(modm:nucleo-f103rb)   NUCLEO-F103RB
    ├── Configuration(modm:nucleo-f303k8)   NUCLEO-F303K8
    ├── Configuration(modm:nucleo-f401re)   NUCLEO-F401RE
    ├── Configuration(modm:nucleo-f411re)   NUCLEO-F411RE
    ├── Configuration(modm:nucleo-f429zi)   NUCLEO-F429ZI
    ├── Configuration(modm:nucleo-g071rb)   NUCLEO-F042K6
    ├── Configuration(modm:nucleo-l432kc)   NUCLEO-L432KC
    ├── Configuration(modm:nucleo-l476rg)   NUCLEO-L476RG
    ├── Configuration(modm:olimexino-stm32)   Olimexino STM32
    ╰── Configuration(modm:stm32f030_demo)   STM32F030 Demo Board

cc @strongly-typed @rleh @chris-durand