Fix various typos (#1350)

Found via `codespell -q 3 -L alue,alse`

Co-authored-by: Christopher Dunn <cdunn2001@gmail.com>
Co-authored-by: Jordan Bayles <jophba@chromium.org>

src/lib_json/CMakeLists.txt

@@ -142,7 +142,7 @@ if(BUILD_STATIC_LIBS)
     set(STATIC_LIB ${PROJECT_NAME}_static)
     add_library(${STATIC_LIB} STATIC ${PUBLIC_HEADERS} ${JSONCPP_SOURCES})
 
-    # avoid name clashes on windows as the shared import lib is alse named jsoncpp.lib
+    # avoid name clashes on windows as the shared import lib is also named jsoncpp.lib
     if(NOT DEFINED STATIC_SUFFIX AND BUILD_SHARED_LIBS)
         if (MSVC)
             set(STATIC_SUFFIX "_static")

src/lib_json/json_reader.cpp

@@ -1614,7 +1614,7 @@ bool OurReader::decodeNumber(Token& token, Value& decoded) {
     const auto digit(static_cast<Value::UInt>(c - '0'));
     if (value >= threshold) {
       // We've hit or exceeded the max value divided by 10 (rounded down). If
-      // a) we've only just touched the limit, meaing value == threshold,
+      // a) we've only just touched the limit, meaning value == threshold,
       // b) this is the last digit, or
       // c) it's small enough to fit in that rounding delta, we're okay.
       // Otherwise treat this number as a double to avoid overflow.

src/test_lib_json/jsontest.h

@@ -74,7 +74,7 @@ public:
 
   /// Removes the last PredicateContext added to the predicate stack
   /// chained list.
-  /// Next messages will be targed at the PredicateContext that was removed.
+  /// Next messages will be targeted at the PredicateContext that was removed.
   TestResult& popPredicateContext();
 
   bool failed() const;