add get_proc_info

def get_proc_info(**kwargs):

    cards = [("BUILD", os.getenv("BUILD"), "")]

    cards = [("BUILD", os.getenv("BUILD", default="-"), "")]

    for k, v in kwargs.items():

        cards.append((k, v, ""))

    header = fits.Header(cards=cards)

from astropy.io import fits

from csst_common.io import append_header, reformat_header, delete_section

from csst_common.io import append_header, reformat_header, delete_section, get_proc_info

class TestFitsHeaderOps(unittest.TestCase):

        h_del = delete_section(h, title="WCS")

        self.assertEqual(len(h_del.cards), 7)

    def test_get_proc_info(self):

        proc_info = get_proc_info()

        self.assertEquals(proc_info["BUILD"], "-")