Duration to String enhanced with tests

Adds checks for if a bit in a u8 is set or clear

src/number_system_conversion.rs

@@ -8,12 +8,12 @@ impl NumberSystemConversion {
     /// ex: 0xff -> true, true, true, true, true, true, true, true
     ///     0xa0 -> true, false, true, false, false, false, false, false
     pub fn byte_to_bool(from: u8) -> [bool; 8] {
-        let mut return_values = [false; 8];
+        let mut result = [false; 8];
         for i in 0..8 {
-            let new_value = from >> i & 0x1 == 1;
-            return_values[i as usize] = new_value;
+            // Extract the i-th bit and convert it to a boolean
+            result[i] = ((from >> i) & 1) != 0;
         }
-        return_values
+        result
     }
 
     /// bool_to_byte
@@ -114,4 +114,19 @@ impl NumberSystemConversion {
     pub fn clear_low_bits(to_clear: u16) -> u16 {
         to_clear & 0xff00
     }
+
+    /// is_bit_set
+    ///
+    /// Checks if a specified bit is set
+    pub fn is_bit_set(to_check: u8, bit_to_check: u8) -> bool {
+        (to_check >> bit_to_check) & 0x01 == 1
+    }
+
+    /// is_bit_clear
+    ///
+    /// Checks if a specified bit is clear
+    /// LSB = 0 MSB = 7
+    pub fn is_bit_clear(to_check: u8, bit_to_check: u8) -> bool {
+        (to_check >> bit_to_check) & 0x01 != 1
+    }
 }