Added file-list to replace file-count.

src/main/java/unimelb/utils/FileCount.java

src/main/java/unimelb/utils/FileList.java

src/main/java/unimelb/utils/FileListOptions.java

src/main/java/unimelb/utils/FileListProgress.java

src/main/java/unimelb/utils/FileListSummary.java

src/main/java/unimelb/utils/FileSizeUtils.java

src/main/scripts/unix/file-list

src/main/scripts/windows/file-list.cmd