Centralize Docker images: fixed broken links and missing libraries

[Simpleshell3]

Fixed broken links and compatibility issues.
To run tests, use the following commands:

• For baseimage:
  ~# docker build -f Dockerfile.base.ubuntu.18.04 --build-arg NUM_CPU=4 -t moja/baseimage:ubuntu-18.04 .
• For flint implementation:
  ~# docker build -f Dockerfile.flint.ubuntu.18.04 --build-arg NUM_CPU=4 --build-arg GITHUB_AT=[TOKEN] --build-arg FLINT_BRANCH=[BRANCH] -t moja/flint:ubuntu-18.04 .

[HarshCasper]

The build still fails with the following error:

-- The C compiler identification is GNU 7.5.0
-- The CXX compiler identification is unknown
-- Check for working C compiler: /usr/bin/cc
-- Check for working C compiler: /usr/bin/cc -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Detecting C compile features
-- Detecting C compile features - done
CMake Error at CMakeLists.txt:11 (project):
  No CMAKE_CXX_COMPILER could be found.

  Tell CMake where to find the compiler by setting either the environment
  variable "CXX" or the CMake cache entry CMAKE_CXX_COMPILER to the full path
  to the compiler, or to the compiler name if it is in the PATH.


-- Configuring incomplete, errors occurred!
See also "/usr/local/poco-1.9.2-all/cmake-build/CMakeFiles/CMakeOutput.log".
See also "/usr/local/poco-1.9.2-all/cmake-build/CMakeFiles/CMakeError.log".
The command '/bin/sh -c wget [https://pocoproject.org/releases/poco-${POCO_VERSION}/poco-${POCO_VERSION}-all.tar.gz](https://pocoproject.org/releases/poco-$%7BPOCO_VERSION%7D/poco-$%7BPOCO_VERSION%7D-all.tar.gz)     && tar -xzf poco-${POCO_VERSION}-all.tar.gz 	&& mkdir poco-${POCO_VERSION}-all/cmake-build 	&& cd poco-${POCO_VERSION}-all/cmake-build 	&& cmake -DCMAKE_BUILD_TYPE=RELEASE 			 -DCMAKE_INSTALL_PREFIX=$ROOTDIR 			 -DPOCO_UNBUNDLED=ON 			 -DPOCO_STATIC=OFF 			 -DENABLE_ENCODINGS=OFF 			 -DENABLE_ENCODINGS_COMPILER=OFF 			 -DENABLE_XML=OFF 			 -DENABLE_JSON=ON 			 -DENABLE_MONGODB=OFF 			 -DENABLE_REDIS=OFF 			 -DENABLE_PDF=OFF 			 -DENABLE_UTIL=OFF 			 -DENABLE_NET=OFF 			 -DENABLE_NETSSL=OFF 			 -DENABLE_CRYPTO=OFF 			 -DENABLE_DATA=ON 			 -DENABLE_DATA_SQLITE=ON 			 -DENABLE_DATA_MYSQL=OFF 			 -DENABLE_DATA_ODBC=OFF 			 -DENABLE_SEVENZIP=OFF 			 -DENABLE_ZIP=OFF 			 -DENABLE_PAGECOMPILER=OFF 			 -DENABLE_PAGECOMPILER_FILE2PAGE=OFF 			 -DENABLE_TESTS:BOOL=OFF .. 	&& make --quiet -j $NUM_CPU     && make --quiet install/strip     && make clean     && cd $ROOTDIR/src' returned a non-zero code: 1
Error: Process completed with exit code 1.

[Simpleshell3]

@HarshCasper Can you share with me the docker files you used? These are the results from the proposed files

.