feat: 导入 NMEA-0183 GPS 协议解析库（node-nmea）

NMEA-0183 语句解析器，含 21 个语句类型 codec 与配套单元测试。

- codecs/：APB/BWC/DBT/GGA/GLL/GRMT/GSA/GSV/HDG/HDM/HDT/MWV/RDID/
  RMB/RMC/ROT/RSA/TXT/VTG/VWR/ZDA
- test/：各 codec 对应的 mocha 用例
- .github/workflows/：node与 npm-publish 流水线

许可证：MIT（原作者 James Penn）

codecs/GRMT.js

@@ -0,0 +1,48 @@
+exports.ID = 'GRMT';
+exports.TYPE = 'sensor-information';
+
+exports.decode = function(fields) {
+  /*
+   === PGRMT - Garmin Proprietary Sensor Status Information ===
+
+   The Garmin Proprietary sentence $PGRMT gives information concerning the status of a GPS sensor. This
+   sentence is transmitted once per minute regardless of the selected baud rate. 
+   
+   ------------------------------------------------------------------------------
+           1                               2 3 4 5 6 7  8 9
+           |                               | | | | | |  | |
+   $PGRMT,GPS19x-HVS Software Version 2.20,P,P,R,R,P,C,15,R*hh<CR><LF>
+   ------------------------------------------------------------------------------
+
+   Field Number:
+
+   1. Product, model and software version (variable length field, e.g., “GPS 10 SW VER 2.01 BT VER 1.27 764”) 
+   2. ROM checksum test, P = pass, F = fail 
+   3. Receiver failure discrete, P = pass, F = fail 
+   4. Stored data lost, R = retained, L = lost 
+   5. Real time clock lost, R = retained, L = lost 
+   6. Oscillator drift discrete, P = pass, F = excessive drift detected 
+   7. Data collection discrete, C = collecting, null if not collecting
+   8. GPS sensor temperature in degrees C 
+   9. GPS sensor configuration data, R = retained, L = lost 
+   
+   Note: Some sensors have been seen to not provide all information above, in some cases just the product 
+   model during boot. Example:
+   
+   $PGRMT,GPS19x-HVS Software Version 2.20,,,,,,,,*6F
+   
+   */
+  return {
+    sentence: exports.ID,
+    type: exports.TYPE,
+    product : fields[1],
+    rom_checksum : fields[2],
+    receiver_failure : fields[3],
+    stored_data_lost : fields[4],
+    rtc_lost: fields[5],
+    oscillator_drift: fields[6],
+    data_collection: fields[7],
+    sensor_temperature: fields[8],
+    sensor_configuration: fields[9]
+  }
+}