New flags for solids update in chemistry

This MR specifies the new inputs flags introduced in mfix-exa MR1450

changed the description

added 2 commits

• 5166fd43 - 1 commit from branch exa:main
• 3056f832 - update chemistry inputs to include the new flags for solids update in chemistry

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added 1 commit

• 9f9d5396 - add the new inputs for particles radius and density thresholds

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added 4 commits

• 9f9d5396...13c2abac - 2 commits from branch exa:main
• deac0ec6 - update chemistry inputs to include the new flags for solids update in chemistry
• 5e67a71c - add the new inputs for particles radius and density thresholds

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merged

mentioned in commit 218a32a9