[wpimath] Remove unit suffixes from variable names (#7529)

* Move units into API docs instead because suffixes make user code verbose and hard to read
* Rename trackWidth to trackwidth
* Make ultrasonic classes use meters instead of a mix of m, cm, mm, ft,
  and inches

cscore/src/main/native/cpp/jni/CameraServerJNI.cpp

@@ -2085,9 +2085,9 @@ Java_edu_wpi_first_cscore_CameraServerJNI_runMainRunLoop
  */
 JNIEXPORT jint JNICALL
 Java_edu_wpi_first_cscore_CameraServerJNI_runMainRunLoopTimeout
-  (JNIEnv*, jclass, jdouble timeoutSeconds)
+  (JNIEnv*, jclass, jdouble timeout)
 {
-  return cs::RunMainRunLoopTimeout(timeoutSeconds);
+  return cs::RunMainRunLoopTimeout(timeout);
 }
 
 /*

cscore/src/main/native/include/cscore_runloop.h

@@ -5,7 +5,16 @@
 #pragma once
 
 namespace cs {
+
 void RunMainRunLoop();
-int RunMainRunLoopTimeout(double timeoutSeconds);
+
+/**
+ * Runs main run loop with timeout.
+ *
+ * @param timeout Timeout in seconds.
+ */
+int RunMainRunLoopTimeout(double timeout);
+
 void StopMainRunLoop();
+
 }  // namespace cs

cscore/src/main/native/linux/RunLoopHelpers.cpp

@@ -12,16 +12,16 @@ static wpi::Event& GetInstance() {
 }
 
 namespace cs {
+
 void RunMainRunLoop() {
   wpi::Event& event = GetInstance();
   wpi::WaitForObject(event.GetHandle());
 }
 
-int RunMainRunLoopTimeout(double timeoutSeconds) {
+int RunMainRunLoopTimeout(double timeout) {
   wpi::Event& event = GetInstance();
   bool timedOut = false;
-  bool signaled =
-      wpi::WaitForObject(event.GetHandle(), timeoutSeconds, &timedOut);
+  bool signaled = wpi::WaitForObject(event.GetHandle(), timeout, &timedOut);
   if (timedOut) {
     return 3;
   }
@@ -35,4 +35,5 @@ void StopMainRunLoop() {
   wpi::Event& event = GetInstance();
   event.Set();
 }
+
 }  // namespace cs

cscore/src/main/native/objcpp/RunLoopHelpers.mm

@@ -8,6 +8,7 @@
 #import <Foundation/Foundation.h>
 
 namespace cs {
+
 void RunMainRunLoop() {
   if (CFRunLoopGetMain() != CFRunLoopGetCurrent()) {
     NSLog(@"This method can only be called from the main thread");
@@ -16,15 +17,16 @@ void RunMainRunLoop() {
   CFRunLoopRun();
 }
 
-int RunMainRunLoopTimeout(double timeoutSeconds) {
+int RunMainRunLoopTimeout(double timeout) {
   if (CFRunLoopGetMain() != CFRunLoopGetCurrent()) {
     NSLog(@"This method can only be called from the main thread");
     return -1;
   }
-  return CFRunLoopRunInMode(kCFRunLoopDefaultMode, timeoutSeconds, false);
+  return CFRunLoopRunInMode(kCFRunLoopDefaultMode, timeout, false);
 }
 
 void StopMainRunLoop() {
   CFRunLoopStop(CFRunLoopGetMain());
 }
+
 }

cscore/src/main/native/windows/RunLoopHelpers.cpp

@@ -12,16 +12,16 @@ static wpi::Event& GetInstance() {
 }
 
 namespace cs {
+
 void RunMainRunLoop() {
   wpi::Event& event = GetInstance();
   wpi::WaitForObject(event.GetHandle());
 }
 
-int RunMainRunLoopTimeout(double timeoutSeconds) {
+int RunMainRunLoopTimeout(double timeout) {
   wpi::Event& event = GetInstance();
   bool timedOut = false;
-  bool signaled =
-      wpi::WaitForObject(event.GetHandle(), timeoutSeconds, &timedOut);
+  bool signaled = wpi::WaitForObject(event.GetHandle(), timeout, &timedOut);
   if (timedOut) {
     return 3;
   }
@@ -35,4 +35,5 @@ void StopMainRunLoop() {
   wpi::Event& event = GetInstance();
   event.Set();
 }
+
 }  // namespace cs