[bsp][ch32v307]添加了适配RT-Thread的全速USB驱动

[IceBear003]

拉取/合并请求描述：(PR description)

为什么提交这份PR (why to submit this PR)

添加了CH32V30系列适配RT-Thread的全速USB驱动。 Added full speed usb driver for CH32V30 series adapted to RT-Thread.

注：由于上一pr掺杂了无关的commit，故另开此新pr

请提供验证的bsp和config (provide the config and bsp)

• BSP:

bsp/wch/risc-v/ch32v307v-r1

• .config:

添加了 drv_usbd.h、drv_usbd.c、drv_usbh.h、drv_usbh.c 文件； 添加了 rt-thread/bsp/wch/risc-v/Libraries/ch32v307_hal/include 目录下 ch32v30x_usb.h 文件； 修改了 rt-thread/bsp/wch/risc-v/ch32v307v-r1/board 目录下的 Kconfig 文件； 修改了 rt-thread/bsp/wch/risc-v/Libraries/ch32_drivers 目录下的 SConscript 文件。

• action:

https://github.com/IceBear003/rt-thread/actions/runs/8899270620

当前拉取/合并请求的状态 Intent for your PR

必须选择一项 Choose one (Mandatory):

• [x] 本拉取/合并请求是一个草稿版本 This PR is for a code-review and is intended to get feedback
• [ ] 本拉取/合并请求是一个成熟版本 This PR is mature, and ready to be integrated into the repo

代码质量 Code Quality：

我在这个拉取/合并请求中已经考虑了 As part of this pull request, I've considered the following:

• [x] 已经仔细查看过代码改动的对比 Already check the difference between PR and old code
• [x] 代码风格正确，包括缩进空格，命名及其他风格 Style guide is adhered to, including spacing, naming and other styles
• [x] 没有垃圾代码，代码尽量精简，不包含#if 0代码，不包含已经被注释了的代码 All redundant code is removed and cleaned up
• [ ] 所有变更均有原因及合理的，并且不会影响到其他软件组件代码或BSP All modifications are justified and not affect other components or BSP
• [x] 对难懂代码均提供对应的注释 I've commented appropriately where code is tricky
• [ ] 代码是高质量的 Code in this PR is of high quality
• [x] 已经使用formatting 等源码格式化工具确保格式符合RT-Thread代码规范 This PR complies with RT-Thread code specification