feat(core): micropython板卡烧录固件时支持调整波特率

boards/default_src/micropython/language/en.js

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+import * as Mixly from 'mixly';
+import TEMPLATE from '../template/board-config-message.html';
+
+const { XML } = Mixly;
+
+export const MICROPYTHON_CONFIG_MESSAGE_BURN_SPEED = XML.render(TEMPLATE, {
+    title: 'Burn Speed',
+    message: 'To select the flashing speed, change the Burn Speed. This value will be used for flashing the code to the device. If you have issues while flashing the device at high speed, try to decrease this value. This could be due to the external serial-to-USB chip limitations.'
+});

boards/default_src/micropython/language/zh-hans.js

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+import * as Mixly from 'mixly';
+import TEMPLATE from '../template/board-config-message.html';
+
+const { XML } = Mixly;
+
+export const MICROPYTHON_CONFIG_MESSAGE_BURN_SPEED = XML.render(TEMPLATE, {
+    title: '烧录速度',
+    message: '要选择烧录速度，请更改“Burn Speed”，此值将用于向设备烧录代码。如果在用较高的烧录速度时出现问题，请尝试减小此值，这可能是由于外部串行到USB芯片的限制。'
+});

boards/default_src/micropython/language/zh-hant.js

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+import * as Mixly from 'mixly';
+import TEMPLATE from '../template/board-config-message.html';
+
+const { XML } = Mixly;
+
+export const MICROPYTHON_CONFIG_MESSAGE_BURN_SPEED = XML.render(TEMPLATE, {
+    title: '燒錄速度',
+    message: '要選擇燒錄速度，請更改“Burn Speed”，此值將用於向設備燒錄程式碼。如果在用較高的燒錄速度時出現問題，請嘗試减小此值，這可能是由於外部串列到USB晶片的限制。'
+});