2. implement simple ByteCodeInterpreter
3. implement simple global env
we can run very simple script likes below now
a = b = 1;
b = a + 2;
Signed-off-by: seonghyun kim <sh8281.kim@samsung.com>
2. implement StringView
3. implement esprima::Scanner for script parsing
4. add original source of esprima 3.1.1
Signed-off-by: seonghyun kim <sh8281.kim@samsung.com>