Swift format updates (#90)

Updates to match latest swift-format configuration in swift-mmio.

Author: rauhul

.swift-format

@@ -23,9 +23,10 @@
   "respectsExistingLineBreaks" : true,
   "rules" : {
     "AllPublicDeclarationsHaveDocumentation" : false,
+    "AlwaysUseLiteralForEmptyCollectionInit" : true,
     "AlwaysUseLowerCamelCase" : true,
     "AmbiguousTrailingClosureOverload" : false,
-    "BeginDocumentationCommentWithOneLineSummary" : false,
+    "BeginDocumentationCommentWithOneLineSummary" : true,
     "DoNotUseSemicolons" : true,
     "DontRepeatTypeInStaticProperties" : true,
     "FileScopedDeclarationPrivacy" : true,
@@ -37,7 +38,7 @@
     "NeverUseImplicitlyUnwrappedOptionals" : true,
     "NoAccessLevelOnExtensionDeclaration" : true,
     "NoAssignmentInExpressions" : true,
-    "NoBlockComments" : false,
+    "NoBlockComments" : true,
     "NoCasesWithOnlyFallthrough" : true,
     "NoEmptyTrailingClosureParentheses" : true,
     "NoLabelsInCasePatterns" : true,
@@ -53,7 +54,8 @@
     "ReplaceForEachWithForLoop" : true,
     "ReturnVoidInsteadOfEmptyTuple" : true,
     "TypeNamesShouldBeCapitalized" : true,
-    "UseEarlyExits" : true,
+    "UseEarlyExits" : false,
+    "UseExplicitNilCheckInConditions" : true,
     "UseLetInEveryBoundCaseVariable" : true,
     "UseShorthandTypeNames" : true,
     "UseSingleLinePropertyGetter" : true,

.swiftformatignore

@@ -1 +1,3 @@
 ./harmony/*
+./stm32-neopixel/Sources/Application/Registers/*
+./stm32-uart-echo/Sources/Application/Registers/*

pico-blink-sdk/Main.swift

@@ -14,7 +14,7 @@ struct Main {
   static func main() {
     let led = UInt32(PICO_DEFAULT_LED_PIN)
     gpio_init(led)
-    gpio_set_dir(led, /*out*/ true)
+    gpio_set_dir(led, true)
     while true {
       gpio_put(led, true)
       sleep_ms(250)

stm32-lcd-logo/Support/HAL.swift

@@ -594,7 +594,7 @@ extension STM32F746 {
     b4Pin.configure(
       configuration: .init(
         mode: .alternateFunction, outputType: .pushPull, outputSpeed: .high,
-        pull: .none, alternateFunction: .alternateFunction9 /*!*/,
+        pull: .none, alternateFunction: .alternateFunction9,
         activeHigh: true))
     b5Pin.configure(
       configuration: .init(