add: methods for copying char data

source/c/compile_macosx_i386.sh

source/c/compile_windows_i386.mak

source/c/compile_windows_x64.mak

source/c/copyByteChar.c

source/java/ch/systemsx/cisd/base/convert/NativeData.java

...t/java/ch/systemsx/cisd/base/convert/NativeDataTests.java