hg: code-tools/sigtest: CODETOOLS-7902673 Raise jt bin/src version to 1.7

[victor.rudometov at oracle.com]

Changeset: 8b7eb24b0ce3
Author:    vrudomet
Date:      2020-05-13 18:51 +0300
URL:       https://hg.openjdk.java.net/code-tools/sigtest/rev/8b7eb24b0ce3

CODETOOLS-7902673 Raise jt bin/src version to 1.7

! build/build.xml
! src/classes/com/sun/tdk/apicover/CMerge.java
! src/classes/com/sun/tdk/signaturetest/sigfile/StructWriter.java
! src/classes/com/sun/tdk/signaturetest/sigfile/f43/F43Writer.java
! src/classes/com/sun/tdk/signaturetest/updater/Updater.java