Split code between ulanzi environment and awtrix_upgrade

Added BME280 sensor support for awtrix_upgrade.

Removed battery readings for awtrix_upgrade

Added DFMiniMp3 lib for replacing the Ulanzi buzzer in the future

lib/DFMiniMp3-1.0.7-noChecksums/.gitattributes

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+# Auto detect text files and perform LF normalization
+* text=auto
+
+# Custom for Visual Studio
+*.cs     diff=csharp
+
+# Standard to msysgit
+*.doc	 diff=astextplain
+*.DOC	 diff=astextplain
+*.docx diff=astextplain
+*.DOCX diff=astextplain
+*.dot  diff=astextplain
+*.DOT  diff=astextplain
+*.pdf  diff=astextplain
+*.PDF	 diff=astextplain
+*.rtf	 diff=astextplain
+*.RTF	 diff=astextplain