Release plan v1.0

[Paebbels]

• [x] Add Apache license text
• [ ] Add contribution rules
• [ ] Documentation
  • [x] Register https://vhdl-interfaces.rtfd.io/
  • [x] Provide initial documentation skeleton - see #11
  • [ ] Document naming rules from #10 in documentation
• [x] Add common interfaces - see #1
  • [x] Tristate
  • [x] differential signaling (P/N)
  • [x] differential lanes (TX/RX)
• [ ] Add low-speed serial interfaces
  • [x] I²C - see #2
  • [x] I²S - see #20
  • [x] SPI - see #4
  • [ ] QSPI
  • [x] JTAG - see #3
  • [x] UART - see #15
  • [ ] RS232
• [ ] Add low-speed parallel interfaces
  • [ ] LPT
  • [ ] ULPI
• [ ] Video/Graphics
  • [x] VGA - see #16
  • [ ] DVI - request #17
  • [ ] HDMI - request #18
  • [ ] DP - request #19
  • [ ] LCD
• MIPI
  • [x] C-PHY
  • [x] D-PHY - see #22
  • [x] M-PHY
• [ ] Ethernet - see #21
  • [x] MDIO
  • [x] RMII
  • [x] MII
  • [x] RGMII
  • [x] GMII
  • [x] XGMII
  • [x] SGMII
  • [x] QSGMII
  • [x] XFI/SFI
  • [ ] XAUI
• [ ] High Speed parallel interfaces
  • [ ] PCI
• [ ] High Speed serial interfaces
  • [ ] PCI Express
  • [ ] Aurora
  • [ ] Interlaken
• [x] Cages (Physical interfaces) - see #26
  • [x] SFP
  • [x] QSFP
• [ ] ARM AMBA
  • [ ] Trace (Mictor38 Trace Bus)
  • [x] AXI
  • [x] v4
    • [x] AXI4 common types
    • [x] AXI4 (full)
    • [x] AXI4-Lite
    • [x] AXI4-Stream
• [ ] Intel (Altera)
  • [ ] Avalon-MM - request #24
  • [ ] Avalon-ST - request #25
• [ ] FOSSi
  • [ ] Wishbone - request #23
• [ ] PoC
  • [x] CSE - see #7