CHIMERA 0.3.0 — Windows installer

WHY A ZIP?  Windows SmartScreen blocks unsigned .exe downloads by reputation.
CHIMERA is not signed with a commercial code-signing certificate on purpose —
that would attach a legal identity to every build, against the project's privacy
stance. Shipping the installer inside a .zip lets the download complete. Verify
the file yourself (stronger than any certificate name):

1) Unzip this archive.
2) Check the SHA-256:
     PowerShell:  Get-FileHash .\CHIMERA_0.3.0_x64-setup.exe -Algorithm SHA256
   Compare it against SHA256SUMS.
3) (Optional, strongest) verify the signature with minisign
   (https://jedisct1.github.io/minisign/):
     minisign -Vm CHIMERA_0.3.0_x64-setup.exe -P RWTxsXQ6tEKa4aQmjTD3/CiLwagG3n74x5bp34QHUm/V2fsqaABoHSTM
   "Signature and comment signature verified" = genuine.

INSTALL:  run CHIMERA_0.3.0_x64-setup.exe. If SmartScreen shows
"Windows protected your PC", click "More info" -> "Run anyway".
