Update NEWS.md for Lrama 0.7.0 release notes, adding support for `-t` option and tracing only explicit rules #1499

Job	Run time
steep-check (head)	12s
check-misc (head)	8s
test-memory (head)	43s
test-ruby (head, master)	6m 29s
test-ruby (3.0, master)	6m 8s
test-windows (head)	1m 35s
ruby-versions / Generate Ruby versions	3s
test-cpp (head, g++)	23s
test-c (head, cc)	20s
test-cpp (head, clang++)	13s
test (2.5)	29s
test-c (head, gcc)	10s
test (2.6)	27s
test-c (head, clang)	11s
test (2.7)	29s
test (3.0)	25s
test (3.1)	16s
test (3.2)	13s
test (3.3)	21s
test (3.4)	19s
test (head)	16s
	19m 50s

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