New Board BMduino(BM53A367A) Holtek

[XiaXia009]

Feature Request: Add Support for BMduino Uno (BM53A367A) and BMduino Nano (BM53A367A)
Dear PlatformIO Team,

I would like to request support for the following boards in the PlatformIO ecosystem:
BMduino Uno (BM53A367A)
BMduino Nano (BM53A367A)

These boards are based on the BM53A367A microcontroller from Holtek. Below are the relevant resources and details:

BM53A367A Datasheet: BM53A367A Datasheet (PDF)
BMduino Uno & Nano Information: BMduino Uno/Nano Overview (Website)
Package Index JSON for HT32: HT32 Platform Package
Additional Resources for HT32: HT32 Resource Page

These boards are compatible with Arduino IDE and keil. I hope they can also be used with PlatformIO.

[XiaXia009]

功能請求：新增對 BMduino Uno (BM53A367A) 和 BMduino Nano (BM53A367A) 的支持
PlatformIO 團隊，

我想要請求對 PlatformIO 生態系中的以下主機板的支援：
BMduino Uno (BM53A367A)
BMduino Nano (BM53A367A)

這些開發板基於 Holtek 的 BM53A367A 微控制器。以下是相關資源和詳細資訊：

BM53A367A 資料表：BM53A367A 資料表 (PDF)
BMduino Uno 和 Nano 資訊：BMduino Uno/Nano 概述（網站）
HT32 的封裝索引 JSON：HT32 平台封裝
HT32 的其他資源：HT32 資源頁面

這些開發板相容於Arduino IDE和Keil。希望它們也能與PlatformIO相容。