Add RealName filed to struct Library

As of now, Library.Name maps to the folder it resides in, not the name declared in library.properties
It could be a bug or a feature, anyway since need to we use the real library name, extract it and save in the structure

Author: facchinm

src/arduino.cc/builder/libraries_loader.go

@@ -184,6 +184,7 @@ func makeNewLibrary(libraryFolder string, debugLevel int, logger i18n.Logger) (*
 	library.License = libProperties[constants.LIBRARY_LICENSE]
 
 	library.Name = filepath.Base(libraryFolder)
+	library.RealName = strings.TrimSpace(libProperties[constants.LIBRARY_NAME])
 	library.Version = strings.TrimSpace(libProperties[constants.LIBRARY_VERSION])
 	library.Author = strings.TrimSpace(libProperties[constants.LIBRARY_AUTHOR])
 	library.Maintainer = strings.TrimSpace(libProperties[constants.LIBRARY_MAINTAINER])

src/arduino.cc/builder/types/types.go

@@ -168,6 +168,7 @@ type Library struct {
 	UtilityFolder string
 	Layout        LibraryLayout
 	Name          string
+	RealName      string
 	Archs         []string
 	DotALinkage   bool
 	Precompiled   bool