feat(parser/renderer): support m-dashes and arrows

[xcoulon]

Fixes #678 #934

Signed-off-by: Xavier Coulon xcoulon@redhat.com

[github-actions]

Comparing with master branch:

name                                          old time/op    new time/op    delta
RealDocumentProcessing/demo.adoc-2              23.7ms ± 0%    22.7ms ± 4%  -4.08%  (p=0.000 n=7+10)
RealDocumentProcessing/vertx-examples.adoc-2    67.2ms ± 5%    65.9ms ± 4%    ~     (p=0.165 n=10+10)
RealDocumentProcessing/mocking.adoc-2           64.1ms ± 3%    64.5ms ± 4%    ~     (p=0.661 n=9+10)

name                                          old alloc/op   new alloc/op   delta
RealDocumentProcessing/demo.adoc-2              8.85MB ± 0%    8.85MB ± 0%  +0.01%  (p=0.029 n=10+10)
RealDocumentProcessing/vertx-examples.adoc-2    24.0MB ± 0%    24.0MB ± 0%    ~     (p=0.897 n=10+8)
RealDocumentProcessing/mocking.adoc-2           21.6MB ± 0%    21.6MB ± 0%    ~     (p=0.684 n=10+10)

name                                          old allocs/op  new allocs/op  delta
RealDocumentProcessing/demo.adoc-2                106k ± 0%      106k ± 0%    ~     (p=0.706 n=10+10)
RealDocumentProcessing/vertx-examples.adoc-2      305k ± 0%      305k ± 0%    ~     (p=0.351 n=10+6)
RealDocumentProcessing/mocking.adoc-2             326k ± 0%      326k ± 0%    ~     (p=0.257 n=10+10)

Comparing with latest release:

name                                          old time/op    new time/op    delta
RealDocumentProcessing/demo.adoc-2              23.7ms ± 0%    22.7ms ± 4%  -4.31%  (p=0.000 n=7+8)
RealDocumentProcessing/vertx-examples.adoc-2    67.2ms ± 5%    65.2ms ± 4%  -3.09%  (p=0.043 n=10+10)
RealDocumentProcessing/mocking.adoc-2           64.1ms ± 3%    67.0ms ± 6%  +4.47%  (p=0.004 n=9+10)

name                                          old alloc/op   new alloc/op   delta
RealDocumentProcessing/demo.adoc-2              8.85MB ± 0%    8.85MB ± 0%    ~     (p=0.165 n=10+10)
RealDocumentProcessing/vertx-examples.adoc-2    24.0MB ± 0%    24.0MB ± 0%  -0.01%  (p=0.000 n=10+10)
RealDocumentProcessing/mocking.adoc-2           21.6MB ± 0%    21.6MB ± 0%    ~     (p=0.565 n=10+10)

name                                          old allocs/op  new allocs/op  delta
RealDocumentProcessing/demo.adoc-2                106k ± 0%      106k ± 0%  -0.01%  (p=0.000 n=10+7)
RealDocumentProcessing/vertx-examples.adoc-2      305k ± 0%      305k ± 0%  -0.03%  (p=0.000 n=10+10)
RealDocumentProcessing/mocking.adoc-2             326k ± 0%      326k ± 0%  -0.00%  (p=0.004 n=10+6)