RapidWright 2021.2.1-beta Release

Release Notes:

• 3-4X faster DCP write times using a new parallel, multi-threaded approach (See #337), Enable with:
  • ParallelismTools.setParallel(true) or
  • Add the environment variable RW_PARALLEL to the environment.
• Multiple DCP read operations can now be initiated in parallel without errors
• Fixes a number of issues related to SitePinInst creation on DCP load (see #317, #318)
• Adds a new MergeDesign capability, allows users to merge two or more existing designs into a
  single implementation (See #331)
• All RapidWright dependencies and itself are published on Maven Central. Removes the need to
  manually download rapidwright_jars.zip, instead users can simply run './gradlew update_jars'
• Includes PRs: #287, #291, #289, #297, #290 #300, #296, #294, #304, #305, #313, #319, #324, #328,
  #320, #332, #330, #336, #331, #333, #322, #318, #317
• Fixes Issues: #326, #298, #299, #312, #315, #326

• API Additions:
  • com.xilinx.rapidwright.design.Design "public void setName(String name)"
  • com.xilinx.rapidwright.device.Site "public ClockRegion getClockRegion()"