patch_lines is not useful for adding multiple lines

[gilesknap]

We should also have an insert block feature for things like this:

ibek-support/ADCore/ADCore.install.yml

Lines 58 to 84 in 5fc52f9

	patch_lines:
	- path: "{{ config_linux_host }}"
	regexp: AREA_DETECTOR[\s\S]*WITH_BOOST
	line: |
	AREA_DETECTOR=$(SUPPORT)
	CROSS_COMPILER_TARGET_ARCHS =
	WITH_GRAPHICSMAGICK = NO
	WITH_HDF5 = YES
	HDF5_EXTERNAL = YES
	HDF5_LIB = /usr/lib/x86_64-linux-gnu/hdf5/serial/
	HDF5_INCLUDE = /usr/include/hdf5/serial/
	WITH_SZIP = YES
	SZIP_EXTERNAL = YES
	WITH_JPEG = YES
	JPEG_EXTERNAL = YES
	WITH_TIFF = YES
	TIFF_EXTERNAL = YES
	XML2_EXTERNAL = YES
	XML2_INCLUDE = /usr/include/libxml2/
	WITH_ZLIB = YES
	ZLIB_EXTERNAL = YES
	WITH_BLOSC = YES
	BLOSC_EXTERNAL = YES
	WITH_PVA = YES
	WITH_BOOST = NO
	WITH_NETCDF = YES
	NETCDF_EXTERNAL = YES

[gilesknap]

The regexp does not work in the above and it adds a second block on second invocation.