dump_modemlog: move android_property_manager

android_property_manager is moved to its own folder in the root of the
modem folder. This is so that libeomservice proxy has a specific build
target to include.

Test: build, flash, check modem logs in bugreport
Bug: 302435001
Change-Id: Ifc4a0c888717f5c28cf9b642d0b978b495be29d0

modem/android_property_manager/include/android_property_manager.h

@@ -0,0 +1,27 @@
+
+#pragma once
+
+#include <string>
+#include <string_view>
+
+namespace pixel_modem {
+
+// Used to set boolean parameters to true / false
+inline constexpr std::string_view kTruthString = "true";
+inline constexpr std::string_view kFalseString = "false";
+
+/**
+ * @brief Interface for interacting with Android System Properties.
+ */
+class AndroidPropertyManager {
+ public:
+  virtual ~AndroidPropertyManager() = default;
+  virtual bool GetBoolProperty(const std::string& key, bool default_value) = 0;
+  virtual std::string GetProperty(const std::string& key,
+                                  const std::string& default_value) = 0;
+  virtual int GetIntProperty(const std::string& key, int default_value) = 0;
+  virtual bool SetProperty(const std::string& key,
+                           const std::string& value) = 0;
+};
+
+}  // namespace pixel_modem