Native support for Eclipse SDKs on riscv64

[yuzibo]

I am trying to build Eclipse SDKs on riscv64. It's obvious that this is the correct repo so I opened the issue to keep track of various tasks done and/or underway like WoA did.

• add support for riscv64 to eclipse.platform.swt submodule
  • Add support for riscv64 eclipse.platform.swt#1444 for build.sh
  • Add linux riscv64 build with bundles eclipse.platform.swt#1445 add linux riscv64 build
  • Fix riscv64 MANIFEST.MF header field eclipse.platform.swt#1469 Fix riscv64 MANIFEST.MF header field(fix pr 1445)
  • Add gtk.linux.riscv64 option for swt bundle eclipse.platform.swt#1474 Build gtk.linux.riscv64 native SWT fragment
  • [draft] Add support riscv64 with p2.inf eclipse.platform.swt#1485 [draft] Add support riscv64 with p2.inf
• Add support for riscv64 on equinox submodule
  • Add support for Linux on riscv64 eclipse-equinox/equinox#669
  • Version bumps for 4.34 stream eclipse-equinox/equinox#672 Version bumps for 4.34 stream [closed; combined into the PR ]
  • todo: revert the file once gtk.linux.riscv64 environment is enabled in general
• add support for riscv64 eclipse.platform.ui submodule
  • [draft] Add support for riscv64 on platform build eclipse.platform.ui#2318 [draft] Add support for riscv64 on platform build
• eclipse.platform.releng.aggregator
  • [Draft] Bump jna version to 5.15.0 #2348
• Add support for riscv64 on JustJ
  • https://gitlab.eclipse.org/eclipsefdn/helpdesk/-/issues/5031 Add riscv64 ci node for JustJ
• Add riscv64 support for eclipse infra
  • https://gitlab.eclipse.org/eclipsefdn/helpdesk/-/issues/4978 Add riscv64 ci node for eclipse
• external porting work
  • linux-riscv64 was not synced in MANIFEST.MF on jna-5.14.0.jar  java-native-access/jna#1622

Next I will always update this.