Fix "no files found matching .jpg" installer issue.

Author: dechamps

src/installer.cmake

@@ -22,7 +22,7 @@ include(build_msvc)
 build_msvc(SOURCE_DIR "${CMAKE_CURRENT_LIST_DIR}" BUILD_DIR "${FLEXASIO_BUILD_ROOT_DIR}/x64" ARCH amd64)
 build_msvc(SOURCE_DIR "${CMAKE_CURRENT_LIST_DIR}" BUILD_DIR "${FLEXASIO_BUILD_ROOT_DIR}/x86" ARCH x86)
 
-file(GLOB FLEXASIO_DOC_FILES LIST_DIRECTORIES FALSE "${CMAKE_CURRENT_LIST_DIR}/../*.txt" "${CMAKE_CURRENT_LIST_DIR}/../*.md")
+file(GLOB FLEXASIO_DOC_FILES LIST_DIRECTORIES FALSE "${CMAKE_CURRENT_LIST_DIR}/../*.txt" "${CMAKE_CURRENT_LIST_DIR}/../*.md" "${CMAKE_CURRENT_LIST_DIR}/../*.jpg")
 file(INSTALL ${FLEXASIO_DOC_FILES} DESTINATION "${FLEXASIO_BUILD_ROOT_DIR}")
 
 configure_file("${CMAKE_CURRENT_LIST_DIR}/installer.in.iss" "${FLEXASIO_BUILD_ROOT_DIR}/installer.iss" @ONLY)