Multiple Geoip/GeoSite datasets in ACL rules

[ReturnFI]

Is your feature request related to a problem? Please describe.
Currently, Hysteria 2 does not support using multiple geoip and geosite databases simultaneously within the ACL configuration. This limitation makes it impossible to combine multiple regional rule sets.
For example, it is not possible to load different geo databases (e.g., default, RU-specific, CN-specific) and use them together inside the same ACL block. This restricts more advanced filtering scenarios where different regions need dedicated rule files.

Describe the solution you'd like
I would like Hysteria 2 to allow defining multiple geoip/geosite datasets and referencing them independently in ACL rules.
The goal is to support configurations similar to the following, where rules from several geoip/geosite sources can be applied together:

"acl": {
  "inline": [
    "reject(geosite:category-ads-all)",
    "reject(geoip:private)",
    "reject(geoip:phishing)",
    "reject(geoip:malware)",
    "reject(geosite:malware)",
    "reject(geosite:phishing)",
    "reject(geosite:cryptominers)",
    "reject(10.0.0.0/8)",
    "reject(172.16.0.0/12)",
    "reject(192.168.0.0/16)",
    "reject(fc00::/7)",
    "warps(geosite:ir)",
    "warps(geoip:ir)",
    "warps(geosite_ru:ru-available-only-inside)",
    "warps(geoip_ru:ru)",
    "warps(geosite_cn:cn)",
    "warps(geoip_cn:cn)"
  ],
  "geoip": "/etc/hysteria/geoip.dat",
  "geosite": "/etc/hysteria/geosite.dat",
  "geoip_ru": "/etc/hysteria/geoip_ru.dat",
  "geosite_ru": "/etc/hysteria/geosite_ru.dat",
  "geoip_cn": "/etc/hysteria/geoip_cn.dat",
  "geosite_cn": "/etc/hysteria/geosite_cn.dat"
}

Additional context
Support for multiple geo datasets would significantly improve flexibility for users who rely on custom or region-specific rule files. It would also simplify advanced filtering setups and reduce the need for manual file merging.

[mirdukkkkk]

up, compiling a separate .dat file from other geo files is a time-consuming task