meson.recipe: Add support for VS2019

Bumping to 0.50.1 would also work, but it's too close to the 1.16
release to do that.
10 jobs for remove-cpp-std in 87 minutes and 29 seconds (queued for 1 second)
Status Job ID Name Coverage
  Preparation
passed #244180
manifest

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  Build
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cerbero deps android universal

01:05:40

passed #244181
cerbero deps fedora x86_64

00:28:48

passed #244183
cerbero deps windows x86

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passed #244184
cerbero deps windows x86_64

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  Full Builds
passed #244186
cerbero android universal

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passed #244187
cerbero cross win32

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cerbero cross win64

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passed #244185
cerbero fedora x86_64

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  Apps
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cerbero android universal examples

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