[Keyboard] Added pistachio_pro (#13466)

* Added pistachio_pro

* Apply suggestions from code review

* Apply suggestions from code review

keyboards/pistachio_pro/lib/bme280.h

@@ -0,0 +1,22 @@
+/* Copyright 2021 rate
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#pragma once
+
+void bme280_init(void);
+void bme280_exec(void);
+double bme280_getTemp(void);
+double bme280_getPress(void);
+double bme280_getHum(void);